Re: [c-nsp] ip access list rfc1918 help please

2012-06-24 Thread Kevin Graham
Do you need to do this via ACLs? For the inbound case, strict unicast RPF would handle this (and more) implicitly. For the outbound, do you have any 1918 routes? If not, just add statics to Null0. [sent from my mobile] On Jun 23, 2012, at 3:37 PM, Randy randy_94...@yahoo.com wrote: --- On

Re: [c-nsp] NTP on a 3750 2970

2012-06-12 Thread Kevin Graham
This would either require a severely broken client (that isn't discarding 0 timestamps), or a server that is setting them prior to being initialized. Most likely it'd be due to erroneous configuration (as earlier cited), declaring the local clock to be authoritative. I'd place a far higher

Re: [c-nsp] VPN over satellite

2012-05-02 Thread Kevin Graham
Never played with it (and it may be a dead-end feature), but 12.3T got some acceleration functionality with RBSCP tunnels along with the VSAT HWICs. Wrap this in IPSec and you should have a single-device footprint for each remote site. (You then also have a readonable place to do ECMP rather

Re: [c-nsp] Will the Cisco 2911 push GigE with NAT enabled ?

2012-05-01 Thread Kevin Graham
On Apr 30, 2012, at 7:42 AM, Dave dcostell-cisco...@torzo.com wrote: CEF is showing enabled and running on all interfaces, however I am seeing a large number of packets that are process switched. ( I assume due to NAT Translation) I had thought NAT entry creation was moved into the CEF path

Re: [c-nsp] Handling redundancy between buildings.

2012-05-01 Thread Kevin Graham
If you're going to the effort of chopping up that /16, kill the cross-building VLANs. You've already got local redundancy in the stack, no need to involve both buildings in duplicate STP, ARP, etc. Let each building be its own L2 domain and turn those 10GbE hauls into PtP L3 links (worst case,

Re: [c-nsp] Question on the Use of Policy Based Routing

2012-03-06 Thread Kevin Graham
From the limited details, it sounds like what you really want is vrf-lite. Assuming the application traffic can be split into its own subnetwork, stick them in a VRF whose normal routing table matches what you're forcing via PBR. On Mar 6, 2012, at 6:55 PM, Zach Williams

Re: [c-nsp] 1Gig-10Gig port-channel migration

2011-10-15 Thread Kevin Graham
On Oct 13, 2011, at 10:55 AM, Tim Durack tdur...@gmail.com wrote: OT: I do wish Ethernet had a means of establishing link and sending test frames without having to commit to full L2/L3. Would make commissioning links much easier. Park the new interface (and a host port for load generation) in

Re: [c-nsp] zx sfp with DOM

2011-10-15 Thread Kevin Graham
On Oct 14, 2011, at 12:25 AM, Phil Mayers p.may...@imperial.ac.uk wrote: At least on the 6500 (which is closely related to 7600) LAN cards, DOM is absent - for example on 6748-SFP. No convincing explanation has ever been given AFAIK; it just doesn't do it, with ANY transceiver. Later hwrevs

Re: [c-nsp] VPN architecture question...

2011-09-02 Thread Kevin Graham
Assuming you're stuck with lanbase (since this is trivial with an igp) on the 3560's, why not make the 1921's point-to-points and statics on each 3560 pointing down those interfaces (with 2 statics on the 1921)? With a FHRP on the 3560 SVI's towards the interior network, pulling the plug on

Re: [c-nsp] 7600 HFIB bug?

2011-07-31 Thread Kevin Graham
The log ACE's force bypass hardware forwarding and CEF altogether, so your speculation on FIB programming is right on. (...and the failure mode matches as well). What does sh plat hard cap show? Over-capacity TCAM FIB supposedly got much better circa 12.2(33), but is still squirrely.

Re: [c-nsp] what is the meaning of WS-X6816?!!

2011-07-22 Thread Kevin Graham
...except that 68xx is now overloaded to also mean 67xx with DFC4. [sent from my mobile] On Jul 22, 2011, at 6:52 AM, Matyas Koszik kos...@atw.hu wrote: Hello Osama, Since you don't want to search google nor cisco, I will not do that either, so you have to accept my answer which comes

Re: [c-nsp] Problem with IP Inspect

2011-07-22 Thread Kevin Graham
On Jul 22, 2011, at 1:23 PM, Joseph Mays m...@win.net wrote: There is no way turning on ip inspection should break communications anywhere in the absence of an ACL list, is there? IIRC, ip inspect is creating a pseudo-acl, so you're being bitten by the default deny. You should apply a

Re: [c-nsp] sup2T software release notes have hit

2011-07-20 Thread Kevin Graham
On Jul 19, 2011, at 1:38 PM, Nick Hilliard n...@foobar.org wrote: Have you considered the monumental task of making NX-OS or XR work with older linecards? Or even IOS-XE? Absolutely -- that's my point. I'm surprised by bringing a new software model to the 2T given that it's game over for

Re: [c-nsp] OSPF Exstart problem

2011-07-19 Thread Kevin Graham
On Jul 19, 2011, at 8:07 AM, Adil Mansoor a.mans...@mmu.ac.uk wrote: Just need an advice if I should issue the command to get around the problem or is there an issue with the firmware version and that it needs upgrading. Likely neither. You only mentioned the one box - are the other L2 and L3

Re: [c-nsp] sup2T software release notes have hit

2011-07-19 Thread Kevin Graham
On Jul 18, 2011, at 11:17 AM, Asbjorn Hojmark - Lists li...@hojmark.org wrote: It is IOS. Sup2T will have IOS-XE Sometime Later(TM). Because on a 6500, commonality with ASR's makes a lot more sense than with the Nexii that share use cases and (some) forwarding hardware? At every turn where

Re: [c-nsp] RES: UDLD misbehaviour

2011-07-14 Thread Kevin Graham
What's in the middle? That you never saw the far side go down after getting err-disabled is fishy. [sent from my mobile] On Jul 14, 2011, at 10:35 AM, Leonardo Gama Souza leonardo.so...@nec.com.br wrote: No, It didnt seem to be an intermittent issue. One of the sides didn't show any

Re: [c-nsp] Thousands of tcp sessions stuck in TIMEWAIT

2011-05-13 Thread Kevin Graham
vty access lists along with login max-failure? (guessing somewhat blindly without visibility into what the active tcb's were) [sent from my mobile] On May 11, 2011, at 7:47 AM, Joe Freeman j...@netbyjoe.com wrote: I have a customer with an 1841 doing webvpn, running advsecurity-12.4-24.T5.

Re: [c-nsp] Cisco WS-CBS3130G-S-F and OutDiscards

2011-02-12 Thread Kevin Graham
Microbursts, see the archives (though it would be so much nicer if these platforms reported them properly as output buffer failures). Nice counter bug there on broadcast packets, it made it hard to concentrate on the real problem. [sent from my mobile] On Feb 12, 2011, at 11:58 AM, Jose

Re: [c-nsp] Constant output drops on etherchannel

2011-01-15 Thread Kevin Graham
See the rest of the thread -- don't bother with those GBICs; if they were a problem, it would manifest itself as input/output errors or link flaps. An output drop means the packets was dropped before ever being transmitted, not mangled by crappy transceivers in-flight. [sent from my mobile]

Re: [c-nsp] Basic Etherchannel Question

2011-01-15 Thread Kevin Graham
Absolutely go LACP. One-way, misconfigured or otherwise broken interfaces in a bundle are handled implicitly and done with explicit signaling to each side (i.e. Both will see it as an independent or broken port rather than just shutdown). This is can also trivially monitored via the LAG-MIB,

Re: [c-nsp] Upgrading VSS from Modular SXH to Monolitich SXH Monolithic SXI

2011-01-07 Thread Kevin Graham
At least for normal (non-VSS), mixed modular/monolithic is unsupported, even for basic RPR. Failure mode is really inelegant -- secondary will just go into a constant crash/reboot cycle. Tried about a year ago to get the DDTS reopened for this to get reported sanely and ran into the no, it's

Re: [c-nsp] Unstable IOS Version for LNS on Cisco 7206 NPE-G2

2010-11-11 Thread Kevin Graham
Rather than speculate, do you have an actual example of a crash that IOS reported as 'SegV exception' that was caused by failed hardware? Yes, I've had a failing VAM manifest itself with SegV crashes. Eventually it died completely and wasn't recognized on boot; once replaced, router was

Re: [c-nsp] ospf monitor

2010-05-06 Thread Kevin Graham
On a similar note, does anyone know if OSPF passive interfaces can be identified via SNMP? It's been awhile since I (fruitlessly) combed the MIBs and am hoping it's changed. I'd love to be able to enforce a monitoring check that all non-passive interfaces have at least one adjacency

Re: [c-nsp] C3750E 10GE Interface: Problem with L2 broadcast/ARP

2010-05-06 Thread Kevin Graham
What's the STP state for this interface on the VLAN in question? There's not much information to go on but this would be both expected and correct if it's blocking. [sent from my mobile] On May 6, 2010, at 7:46 AM, Christian Schuler cschu...@pironet-ndh.com wrote: Hi, I'm debugging for some

Re: [c-nsp] Flow Control and 10GE interfaces

2009-11-24 Thread Kevin Graham
This is exactly the *only* situation, where classic flow control makes sense and does really help, since it properly triggers output queueing at the sending side when the real data-path speed is reached. OK, the vitriol towards .3x in this thread was so strong I was concerned I had

Re: [c-nsp] OT: VSS + MEC - port-channel dynamically cloned?

2009-11-24 Thread Kevin Graham
[...taking this from nanog to c-nsp...] Essentially, for all of the MEC connections, the VSS has created a clone of the configured port-channel to bind the actual physical connections, rather than binding them under the configured port-channel (and suffixed the port-channel number with A or

[c-nsp] Delayed IGP default-originate?

2009-11-23 Thread Kevin Graham
Similar to Gert's question on on delayed eBGP startup, is there a good way to delay IGP default-route generation? Since our DFZ routers have a 0/0 nailed down to Null0, OSPF begins generating the default right away, irrespective of BGP state (namely before the router is actually prepared to

Re: [c-nsp] Flow Control and 10GE interfaces

2009-11-23 Thread Kevin Graham
The answer is very simple: if someone thinks that ethernet flow control is the answer, the burden of proof is on them to answer difficult questions about what the actual problem is, what flow control is going to solve, and why they think that it won't cause more problems than its worth. At

Re: [c-nsp] Flow Control and 10GE interfaces

2009-11-23 Thread Kevin Graham
so you have one ingress port (the NAS), 20 egress ports (the clients). Egress port 1 fills up. What are you going to do? Flow-control (- slow down 19 other ports) or drop? Agreed, egress queuing and flowcontrol send seems logically flawed, but the NAS case I see cited is flowcontrol

Re: [c-nsp] Delayed IGP default-originate?

2009-11-23 Thread Kevin Graham
router ospf max-metric router-lsa on-startup wait-for-bgp [...] not only do you not want to generate a default route during initial BGP convergence, you don't even want to be in the path (to a valid BGP NH) during that period, for the same reasons. Yep, looks like that's it, thanks!

Re: [c-nsp] SXI(3) code status?

2009-11-19 Thread Kevin Graham
Problem also with SNMP ACL bypass with SXI3 on VSS setup. If you configure ACL to protect access to SNMP RO or RW, the ACL is not filtering and access is granted to anyone (if you know the community string of course). Ouch, will want to track this before moving off of SXH rebuilds and

Re: [c-nsp] how not to write a release note

2009-11-17 Thread Kevin Graham
Does not say anything about what may trigger it, eg: mtu, packet fragmentation, etc.. Though that one is higher profile, still not as bad as: http://www.cisco.com/en/US/docs/interfaces_modules/services_modules/csm/4.2.x/release/notes/ol_6897.html#wp274407 ...listed as a Limitation and

Re: [c-nsp] ISR G2 multicore?

2009-10-27 Thread Kevin Graham
problem still exists that IOS is monolithic based and has a horrible time making good use of SMP Agreed. Its particularly curious on the ISR, since its still a software-based platform and not positioned for heavy IGP/EGP workloads. SMP for NX-OS/XE/XR where its just the control-plane is a lot

[c-nsp] ISR G2 multicore?

2009-10-26 Thread Kevin Graham
I was just reading the 3925/3945 announcements and notice they're plugging multicore processors. Given brief and violent life of MPF on the NPE-G1, this seems surprising. Does anyone know what the plans are to actually utilize these? ___ cisco-nsp

Re: [c-nsp] DWDM optics on 6500s

2009-10-20 Thread Kevin Graham
I assume that even though the 6509-V-E is available, until the 80gig line cards and Sup are available, you'd be stuck at 40gig/slot? Correct (nothing special about the 09-V-E in this respect compared to any other the -E's as far as I know). This is the same as how the traditional (pre-E) 6500

Re: [c-nsp] Bonded T1 Circuits

2009-10-20 Thread Kevin Graham
You could do 8 if you use four VWIC-2MFT-T1 cards, which is pretty much as high as you'd ever want to go with MLPPP. With the major caveat that the clock is shared between both ports on a the VWIC. Even knowing this, it has still bitten us when originally identical T1's got groomed onto

Re: [c-nsp] DWDM optics on 6500s

2009-10-19 Thread Kevin Graham
As a side issue, there are electrical limitations imposed by the physical cross-bar unit inside the actual chassis, but I don't know how much of a problem these limitations are in practice. 6500E was the key for this. Besides nutty amounts of POE capacity, it also picked up improved

[c-nsp] RPR between 720-3B and 720-3BXL

2009-10-19 Thread Kevin Graham
I could have sworn this had been covered on the list before, but I can't find it in archives. We need to get a switch w/ Sup720-3B's upgraded to a Sup720-3BXL's. Though I'm sure its not supported, does anyone know if a (same generation but larger) PFC can come up as a standby? SSO seems too much

Re: [c-nsp] DWDM optics on 6500s

2009-10-19 Thread Kevin Graham
Are you saying a 6513-E chassis exists? I can't find any reference to it. Apparently not yet. (I had never paid attention to availability, as any places we might use it would depend on full fabric connectivity). Quick search turned up (the rather depressing):

[c-nsp] Monitoring software-switching utilization (IP Input) on modular/ION

2009-10-16 Thread Kevin Graham
We were considering pushing out monitoring templates watching for broken devices doing slow-path switching seeing high (10%?) utilization of the IP Input process. In ION, presumably this lumped in with lots of other stuff in ios-base. Is there a good way to get at this data, or am I not

Re: [c-nsp] monitoring switch stacks

2009-10-14 Thread Kevin Graham
just wondered what folk did out there to monitor switch stacks (eg stackwise+ switch stacks like 3750e, 2975gs etc (not the older gigastack ones) ) - using the basic methods such as ICMP will only show the presence of connectivity to the stack but not the actual health of the stack - eg

Re: [c-nsp] Flexwan module - Memory

2009-10-14 Thread Kevin Graham
My doubt are 1. whether these cwan1/0-disk0: and cwan1/1-disk0: are builtin flash modules on Flexwan module? Yes. 2. if so can i upload my IOS in those modules No. FlexWAN (as with all linecards) boots after the MSFC/Sup. Its devices are inaccessible from either Sup or MSFC ROMMON.

Re: [c-nsp] cisco-nsp Digest, Vol 83, Issue 39

2009-10-12 Thread Kevin Graham
However, good firewalls are doing a lot more than that. You may remember last year's the Internet is falling and only Dan Kaminsky can explain it flap around DNS. Well, a lot of the discussion around this bug/problem/issue ignored the truth that a good firewall prevented the attack

Re: [c-nsp] Problem encountered while securing NTP

2009-10-06 Thread Kevin Graham
The problem I'm running into today is that the 'access-group peer' statements on the NTP servers are matching local clients with ACL 6 as well as configured stratum-1 peers (successfully matching the peers at that). The local clients should be matched with the 'access-group serve-only'

Re: [c-nsp] Will UDLD work with converters ?

2009-10-03 Thread Kevin Graham
Also, bear in mind that not all c65k ports support reading DDM info from SFPs. SUP720 cards will, as will later hardware revisions of the 6724sfp blades. Earlier hardware revisions won't. Yeah. I really wish this had gone under a new part number (WS-X6724A-SFP?). It hasn't happened yet,

Re: [c-nsp] Cisco Security Advisory: TCP State Manipulation Denial ofService Vulnerabilities in Multiple Cisco Products

2009-09-18 Thread Kevin Graham
I think this is really the thing that annoys me most - they know how to do it right, and conciously decided to go the other way. Yep. The single biggest reason I'm not advocating Nexus 5000/7000's today is the lack of NX-OS on the Sup720. If there was roadmap for it to also include existing

Re: [c-nsp] Assistance configuring a router to trigger remote blackhole

2009-09-18 Thread Kevin Graham
If I blackhole/sinkhole an external-to-my-ARIN-block IP that is attacking my network, I'm deathly afraid that I may accidentally advertise it to a peer. Hadn't thought about it, but yeah, requiring a very long prefix length before appending RTBH prefixes would be a good safety measure. I

Re: [c-nsp] BGP and remote POPs with individual upstreams

2009-09-18 Thread Kevin Graham
My initial thoughts are to BGP peer between POPs with a higher local-pref for the local outbound traffic and to prepend between the POPs so inbound traffic is more likely to take the shortest path inbound. Is this too simplistic? Prone to trouble? What gotchas should I be looking at, or

Re: [c-nsp] Enhanced download procedure

2009-09-17 Thread Kevin Graham
This wouldnt be such a problem if folks in the know could use nice standardized methods such as FTP or lynx compatible HTTP to download what they want, regardless of which download method of the day is currently in effect. Indeed. I have several of these odd network devices (they don't

Re: [c-nsp] Cisco Security Advisory: TCP State Manipulation Denial ofService Vulnerabilities in Multiple Cisco Products

2009-09-17 Thread Kevin Graham
On the other hand, do you remember how long did it take to run native IOS on 65xx with the majority (not all) of the CatOS features? Considering IOS Feature Parity was an SXI objective, quite a bit. It took a long time, but the fundamental difference is that eventual convergence was always

Re: [c-nsp] Assistance configuring a router to trigger remote blackhole

2009-09-17 Thread Kevin Graham
I'm unsure if it's working or not, but since the nulled routes don't appear to be advertised to the transit peer, I'm assuming not. Does a 'sh ip route' for the /32 indicate that its being redistributed? If you do a 'sh ip bgp nei nei adver' does it show it being advertised?

Re: [c-nsp] Cisco Security Advisory: TCP State Manipulation Denial ofService Vulnerabilities in Multiple Cisco Products

2009-09-14 Thread Kevin Graham
It's sad when you see all the effort that went into the modular over the years being thrown away/ignored then keep having devices crash with more catastrophic outcomes and no usable debugging information. Indeed, that too and the (much anticipated) promise of hot-patching never seemed

Re: [c-nsp] Cisco Security Advisory: TCP State Manipulation Denial ofService Vulnerabilities in Multiple Cisco Products

2009-09-14 Thread Kevin Graham
that is not feasible, completely abandon IOS and provide XE or NX-OS on *all* platforms) NX-OS on all platforms? nothanks - some of us want functionality ;-) No, that's exactly the problem. The balkanization of the OS platforms only amplifies this; non-core functionality such as IOS's

Re: [c-nsp] instabilities with SXI2?

2009-09-14 Thread Kevin Graham
TAC was pretty responsive, they have identified this as CSCtb27643. It happens in SXI2, both modular and monolithic, and whether in VSS or not, just when DFCs are in place. The ddts is not public so ask your local team. FWIW we just ran into this; TAC told me SXI2a would be released

Re: [c-nsp] Cisco Security Advisory: TCP State Manipulation Denial ofService Vulnerabilities in Multiple Cisco Products

2009-09-13 Thread Kevin Graham
Sorry for the late response, had to dig through some old cases... But anyway - my routers are lying to me. They list *.179 just fine (BGP), but all the other interesting stuff (telnet, ssh, ldp) is not there... Last dug into this 2.5y ago (while looking into PSIRT cisco-sa-20070131-sip) and

[c-nsp] Sup720 hang while writing SP crashinfo?

2009-08-18 Thread Kevin Graham
We had a Sup720B (non-redundant, running modular SXI) crash, due to what looks like was due to a CPU_MONITOR watchdog event. What was nasty though was that rather than reload, it hung (dead and unresponsive console) and required a power cycle. The RP crashinfo made it out fine, however SP

Re: [c-nsp] Sup720 hang while writing SP crashinfo?

2009-08-18 Thread Kevin Graham
Aug 18 2009 addr=0x0, pc=0x74C7D940, ra=0x74C7D86C, sp=0x389EBC8 On Aug 18, 2009, at 11:04 PM, Kevin Graham wrote: We had a Sup720B (non-redundant, running modular SXI) crash, due to what looks like was due to a CPU_MONITOR watchdog event. What was nasty though was that rather than

Re: [c-nsp] Multilink PPP Was - Re: Balancing T1's with CEF

2009-07-30 Thread Kevin Graham
Cisco TAC swore up and down that it SHOULD balance between the 2 types of WICs but more traffic was being sent over the WIC T1-DSU. Replacing the WIC 1-DSU with the controller did the trick. Ran into a similar problem mixing the T1 VWIC's (when they were new) and WIC-1DSU-T1's. One type of

Re: [c-nsp] c877 and ntp oddness

2009-07-18 Thread Kevin Graham
Have a bizarre NTP issue with 877 routers running 12.4(T) train. - Only seems to affect a small percentage of 877 routers, 878s, 1800s , 2800s seem to be fine A coworker reported the exact same behavior a couple of weeks ago. They got 87x routers with a new hardware revision,

Re: [c-nsp] Cisco's New Software Download Experience

2009-07-09 Thread Kevin Graham
There's no way I'm downloading 250MB+ images just to re-upload them over whatever slow internet access I happen to have at my desktop/laptop to our staging system. Also a critical habit for archiving. Finding an interim build that you got 6 months ago and now have to re-use is only

[c-nsp] 2gb on 720BXL w/ SXI

2009-07-06 Thread Kevin Graham
Stumbled across this when reading SXI release notes, which is the only mention I'd seen of it. As of SXI, 2gb of DRAM is supported on both RP and SP of Sup720BXL. Not sure what the motivation was to take SP up, but MSFC3 w/ 2gb takes some of the sting out of MSFC4 getting blocked on 6500...

Re: [c-nsp] Layer 2 vs Layer 3 Performance Question

2009-06-22 Thread Kevin Graham
The only thing I can see as a difference is if I trunk the iSCSI vlan, then the traffic never hits the 6509's routing module. Maybe that helps performance? No. Assuming the 6500 isn't a relic with an MSM or Sup1/Sup1A, there should be no difference in L2 and L3 forwarding performance

Re: [c-nsp] Layer 2 vs Layer 3 Performance Question

2009-06-22 Thread Kevin Graham
Hmm. I'm more familiar with the sup720/PFC3 hardware than the earlier stuff. Sup2/MSFC2 is same switching paths as 720, only major difference is the common lack of a switch fabric. What IOS version are you running? Can you show mod? Are the servers backup kit on the same linecard? If

Re: [c-nsp] x6148 vs. x6548

2009-06-22 Thread Kevin Graham
You are correct. That only applies to the 6148. Originally it also applied to the 6548 as well, but that limitation was removed later by s/w optimizations in the LTL programming scheme. So you *can* get more than 1G thru an etherchannel with 6548s, but of course, you still can only get

Re: [c-nsp] heat fins popping loose on WS-X67xx cards

2009-06-15 Thread Kevin Graham
The first shows the Z1 socket in the background with the fuzzy loop in the foreground. The second shows the heat fin loop in the foregraound with the socket in the background. The loop is supposed to be in the Z1 socket. Just unpacked a WS-X6748-GE-TX and found a loose jumped in the

Re: [c-nsp] full routing table / provider-class chassis

2009-06-15 Thread Kevin Graham
Was the original intention of this thread not to find out exactly what *is* the best tool for the above scenario? :) GSR w/E3 or E5 LCs, ASR 1K, CRS-1, or N7K, depending upon the circumstances Probably none of them -- N7K seems squarely targeted at enterprise DC, so given BU turf wars,

Re: [c-nsp] full routing table / provider-class chassis

2009-06-15 Thread Kevin Graham
Hah, keep drinking the cool aid! I have a pair of 6500s ready to fall over at about 150kpps. All WS-67xx LAN cards with DFCs. CPU averages 60% and often maxes. No netflow, no uRPF, no multicast, no IPv6, no BFD, no MPLS, no ACLs in the forwarding plane. Very basic OSPF, BGP, and MSTP.

Re: [c-nsp] 6500/SUP32 - RP ROMMON upgrade?

2009-06-14 Thread Kevin Graham
7200s have three places where code is stored, ROMMON, Bootflash, and the main image. ROMMON is a physical Yank this chip out of its socket and replace it with another chip so not flashable. Not DIY unless you have an EPROM burner and a factory chip with newer code to dump. Depends

Re: [c-nsp] Location of 67xx rommon (c2lc-rm) images?

2009-06-11 Thread Kevin Graham
Do a search for c2lc-rm2.srec.122-18r.S1 Yep, thanks for the pointer. Wonderful that they made the site spider-friendly enough that: http://www.google.com/search?q=site%3Acisco.com+c2lc-rm2 ...returns 1 result. I was mostly trying to confirm that (18r)S1 was still the most current option

[c-nsp] Location of 67xx rommon (c2lc-rm) images?

2009-06-10 Thread Kevin Graham
With the new and not so improved software download and documentation sites, does anyone know where to find rommon images and release notes for 6500 line cards? RP/SP images are linked under the 6500 download pages, but the only DFC-related link is for c6dfc3 (65xx/68xx DFC3, I believe). Thanks.

Re: [c-nsp] PFC3/3B/3C ACL support

2009-05-14 Thread Kevin Graham
1. For reflexive ACLs, I believe (never used them on this platform) that the opening closing packets are punted to CPU, so that the reverse flow can be installed into and removed from the netflow table. Agreed and is entirely expected for reflexive entries. Documentation indicated

[c-nsp] PFC3/3B/3C ACL support

2009-05-13 Thread Kevin Graham
The Understanding ACL on Catalyst 6500 Switches[1] white paper indicates that: All TCP session traffic, except for the TCP three-way handshake (SYN, SYN/ACK, ACK) and session close (FIN/RST), is handled in hardware ...which makes sense for reflexive ACL's, but is that also true for

Re: [c-nsp] Disabling SSL Version 2.0 on CSM with SSL (WS-X6066-SLB-S-K9)

2009-05-12 Thread Kevin Graham
we are now required to disable SSL 2.0 on all SSL proxies. Looking at the command reference there does not seem to be an option to do this. It's a trick question; SSLv2 isn't supported (at most, you can configure a destination to shunt v2 traffic to):

Re: [c-nsp] VSS1440 to ASR1002 - MEC issues

2009-05-02 Thread Kevin Graham
Your original concern was redundancy, so I'd personally go with two L3 interfaces per ASR over a static GEC. You may end up with more traffic over the VSL (as I don't believe there's a ECMP enhancement to prefer same-chassis ports as there is for MEC), but you'll avoid having to depend on

Re: [c-nsp] Disabling enable command for users at privilege 0

2009-03-06 Thread Kevin Graham
Is possible to disable enable command for users at privilege 0? With a parser view you can exclude-command enable; then just assign those users that view (ie. username noc view LIMITED passsword 0 test). This works under 12.4T, there is a (still undetermined) bug that prevents it from

Re: [c-nsp] csm

2008-12-01 Thread Kevin Graham
I add port 53 in csm. How can I do the health check for this port53 Assuming by adding port 53 you mean added a DNS server listening on port 53: http://www.cisco.com/en/US/docs/interfaces_modules/services_modules/csm/4.2.x/configuration/guide/helthmon.html#wp1025212

Re: [c-nsp] Catalyst 3750 stacks with many members

2008-11-17 Thread Kevin Graham
The one foot cables that come with the switches are great. They are short and light enough that the crappy connectors don't cause a problem. I have a suspicion that Cisco wanted to fix this. The 3750E's were initially a 3780, and were renamed late enough that several product photos had the

[c-nsp] FHRP's and STP

2008-11-17 Thread Kevin Graham
Is there a way to (safely) force any of the FHRP's into a multiple-active setup such that the first router to see a packet can route it? Namely, I'm frustrated by instances w/ L3 switches where the L2 topology (via STP) doesn't match the L3 topology (via a FHRP) resulting in cases where traffic

Re: [c-nsp] ASR 9000

2008-11-11 Thread Kevin Graham
Runs IOS XR, while the recent ASR 1000 series runs IOS XE? Consistency would be nice. ...or atleast call this a CRS-2 or something. I'm still crossing my fingers that there's a master plan for consistency (or alternatively, clear differentiation) between XR/XE/12.2SX/12.2SR/NX-OS.

Re: [c-nsp] NPE-G2 Gigabit Ignored Errors

2008-09-14 Thread Kevin Graham
On a related note, we are seeing input overruns on almost all native GigaE ports on the NPE-G1. Example on 12.4(21): On the other side, of those NPE-G1 ports, do you see any flow control from them? I've never seen a G1's counters show pause frame that it sends, but even watching them

Re: [c-nsp] OSPF point-to-point vs dr/bdr

2008-08-20 Thread Kevin Graham
Funny, we look at it exactly the opposite way. We're a service provider, and a large majority of the Ethernet links where we run an IGP are point to point links. So we have the point to point configuration as part of our standard config template, nothing extra to keep track of. I agree that

[c-nsp] CAB-HD8-ASYNC extension cables?

2008-08-18 Thread Kevin Graham
Does anyone know what the formal name for the 'HD' end of an CAB-HD8-ASYNC (for the HWIC-8A/16A)? Ideally I'd like to do an extended runbefore fanning out into RJ45's. Also, given the async line definition of: line 0/0/0 0/1/15 ...is it proper to infer that 0/0 has 16 ports? Namely, if 0/0

Re: [c-nsp] CAB-HD8-ASYNC extension cables?

2008-08-18 Thread Kevin Graham
The connector on the cards are (Micro)D68F (also used by SCSI-3 devices). You would be looking for a D68M-D68F cable to extend the connection. [...oops. sorry Brian, you were right...] Thanks, I didn't have one on hand to check. Do you happen to know if the pinout is consistent w/ the

Re: [c-nsp] 6509 ACE/FWSM Modules??????????

2008-07-30 Thread Kevin Graham
My plan is to collapse my core switch(3750), pix, and css devices into two 6509's with the fwsm/ace/Gig-e modules. I am just trying to decide the best way to segregate the internal lan and middle tier dmz's. Our experience with 6500/7600 and IOS support makes this look like a bad

Re: [c-nsp] nvram writing config issue

2008-07-27 Thread Kevin Graham
Doesn't look like my 2960 will do service compress-config. Shall have to configure it to boot using config on flash :) For simulated-nvram platforms, you can't compress the config, though boot buffersize will allow you to increase the size. You'll need to get your config back down below 64k,

Re: [c-nsp] Maximizing Router capabilities

2008-07-21 Thread Kevin Graham
Assuming budget is not a hindrance. So should I go for the advance enterprise? Advance enterprise is different from advanced-ip series? http://www.cisco.com/en/US/prod/collateral/iosswrel/ps8802/ps5460/prod_bulletin0900aecd80281b17.html ___ cisco-nsp

Re: [c-nsp] High temperatures on cisco 6504-E chassis

2008-07-10 Thread Kevin Graham
Maybe it's the fact that these are sup720-3cxl-10ge , with X2 modules installed (which also seem to get hot, 41C), and this packed in a small chassis Check CISCO-ENTITY-SENSOR-MIB::entSensorThresholdTable. Looking at some 720C-10GE's, the minor threshhold for the 'asic-#' sensors are

Re: [c-nsp] 3750 stack member failure detection

2008-07-09 Thread Kevin Graham
Does anybody know how to detect a stack member down within a 3750 stack through SNMP ? You could count how many interfaces are available. It'd be a lot more effective to just watch the IF-MIB::ifOperStatus of the stack ports. I haven't checked, but I would think that counting interfaces

Re: [c-nsp] /31 network

2008-07-02 Thread Kevin Graham
has anyone used /31 network instead of /30? I believe this is recommended to use /31 network? Need expert comments. Support still seems very limited, but on a similar thread, has anyone toyed with the 'ip unnumbered for Ethernet' feature? Initially it was just option-82 magic, but I noticed

Re: [c-nsp] 7600 vs. 7200 vs. ASR1000 for multi-gigabit encrypted traffic?

2008-05-27 Thread Kevin Graham
We're setting up a WAN connecting 12 main sites and maybe 100 smaller sites. Each of the main sites will have 1Gbps links and the smaller will have on the order of 100Mbps [...] All traffic over this WAN must be encrypted. Is the WAN all direct PtP? Based on link speeds you cited,

Re: [c-nsp] 6509 power supply question

2008-05-22 Thread Kevin Graham
We have a 6509 with 2 x 1300W power supplies? rephrase we had :) - anyway, one of the power supplies has died, we are sourcing a replacement however, in the meantime I have another 6509 sitting next to me however it has 1800W power supplies. Does 'sh mod' say they're 1800W's, or are you just

[c-nsp] 100Base-FX with HWIC-1GE-SFP?

2008-05-19 Thread Kevin Graham
Can anyone confirm whether the HWIC-1GE-SFP will do 100Base-FX? The only option that appears to be supported on the ISR's is the NM-1FE-FX-V2, which with a nearly identical list price seems is obviously far less desirable assuming that the HWIC can do the job.

Re: [c-nsp] SSH Authoized Keys?

2008-05-10 Thread Kevin Graham
(21252 unread) Yahoo! Mail, cepbc The answer I have heard from Cisco is that doing so would place a runtime dependancy on the storage. [...] You could put the keys into the config but the config could get messy. RSA crypto keyrings are a little noisy, but well organized, hardly anything new,

Re: [c-nsp] Univercd

2008-05-08 Thread Kevin Graham
As much as I'm disappointed to see /univercd become deprecated, the new documentation site at least looks OK once you can find the right navigation links to it. What's far worse is what was just done to the old release navigator pages. Now, instead of searching by release, we get to search

Re: [c-nsp] Cisco 10k?

2008-03-25 Thread Kevin Graham
There seems to be some confusion between 7301 and 7304. Cisco has never known what to call the 1RU 7200 -- 7401, 7301, 7201; given their own confusion, its only to be expected elsewhere. I guess the only reprieve is there won't ever be another one. 7304 (either NSE or NPE) has been on its

[c-nsp] Identifying IGP passive interfaces via SNMP

2008-03-25 Thread Kevin Graham
Does anyone know of a way to identify passive (either OSPF or EIGRP being my interest) interfaces via SNMP? With OSPF-MIB restricting ospfIfHelloInterval to a lower bound of 1s, a '0' hello interval isn't possible, and I believe EIGRP has a similar limitation. I'd like to have a

Re: [c-nsp] SNMP monitor per blade , Cisco 6500/7600

2008-03-18 Thread Kevin Graham
For bus utilization per module, I think you're going to have to infer it based on interface activity. According to an old TAC case, SXH was supposed to include 'CISCO-SWITCH-HARDWARE-CAPACITY-MIB', which would be an SNMP equivalent to 'sh plat hard cap'; this would at least get you a view of

Re: [c-nsp] AP-1242AG config

2007-12-17 Thread Kevin Graham
It doesn't appear that you have BVI associated w/ a bridge group. What I typically do its .1q tag for the wireless traffic and leave BVI1 on the native VLAN (effectively making no reference to the 'maangement' VLAN on the AP), and then configure the switchport w/ the port's native vlan as

Re: [c-nsp] simple redunancy..

2007-12-17 Thread Kevin Graham
Doing a bridge on the 2851 is an option, but if the 3750's are part of a single stack, then just use a multi-chassis etherchannel. Otherwise, put up /31's between the 3750's and 2851; at that point, either terminate connectivity on a loopback, or use two tunnels for each of the ISP's (in separate

Re: [c-nsp] per-packet load sharing.

2007-12-10 Thread Kevin Graham
The thing is the cef is load-balancing packets across equal-cost links on a per-destination which is how its suppose to be which I get it. The issue is my tunnel traffic is destined to a single core router on the far end of the links consuming the majority of the BW for any single link.

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