Would traffic mirroring work? I haven't used it much in IOS XR. I'm
not even sure a tunnel can be a destination, but it would be worth a
shot.
http://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/asr9k_r4-3/interfaces/configuration/guide/hc43xasr9kbook/hc43span.html#wp1400132
On Mon,
You can check the NP drop counters using the show drops command on ASR.
You can get basically the same data by doing show controller np ports all
location location to find the relevant NP then do show controllers np
counters np location. There's usually a lot of data there and it can
be hard to
We've been running into an issue with early tail drops on A9K-8T-L cards
and I'm trying to wrap my head around how buffering works on these cards. I
get the impression that they don't have dedicated per-interface output
queues and instead use some sort of shared buffering mechanism. We have an
Or the obligatory oneliner:
router pim address-family ipv4 register-source loopback 0
Regards,
Steinar
On 20/08/14 22:04, John Neiberger jneiber...@gmail.com wrote:
I have a use case where I really need to force some ASR9Ks to use their
loopback addresses as the source for PIM register
I have a use case where I really need to force some ASR9Ks to use their
loopback addresses as the source for PIM register messages but there
doesn't seem to be a way to do it. I've checked up to version 5.2 and there
doesn't seem to be a command to do this like there is in IOS.
Do any of you know
We ran into an interesting problem this morning and I've been told that
we've run into this same problem a couple of times before with other N7Ks.
This is ASM. We have a receiver and a source connected to the N7K. The RP
is a 7600 elsewhere. The N7K was rebooted (upgraded to 6.1(3), actually)
and
.
--
*From:* John Neiberger jneiber...@gmail.com
*To:* cisco-nsp@puck.nether.net cisco-nsp@puck.nether.net
*Sent:* Tuesday, 29 July 2014 2:47 AM
*Subject:* [c-nsp] Cisco 7600 and 'show mfib' commands
I'm at a new job and was looking at a few recent trouble
, John Neiberger jneiber...@gmail.com
wrote:
This looks like a command that is new in 12.2(33)SRD or SRE. At my old
job,
all of our 7600s were running 12.2(33)SRC2. My new job has quite a variety
of code running. The box I'm on right now is running SRE code and does
have
these commands
I'm at a new job and was looking at a few recent trouble tickets. I see
that TAC had them use variations of the 'show mfib' commands, like 'show
mfib linecard summary'. At my previous job, we had a few hundred 7600s but
I don't recall TAC ever directing us to use those commands. I took a peek
at
On Thu, May 15, 2014 at 1:16 PM, Mack McBride mack.mcbr...@viawest.comwrote:
CSCuh43027
It looks like the bug is triggered when you have deterministic med
configured. Did you have that configured or did this bite you without it?
John
___
cisco-nsp
If you see an mroute for it but the traffic is not arriving, either the
upstream router isn't sending it to your or the TTL is expiring. If this is
IOS, check show ip traffic for the bad hop count and see if it's rapidly
increasing. If it is, the TTL is expiring at your hop. Also check for ACLs
router,
you'll have to use the various show controllers commands to find it.
John
On Fri, May 9, 2014 at 11:58 AM, John Neiberger jneiber...@gmail.comwrote:
If you see an mroute for it but the traffic is not arriving, either the
upstream router isn't sending it to your or the TTL is expiring
We had an interesting issue arise on Friday and I'm still wrestling with
it. The short story is that we have a 7600 with a lot of ACLs on it, some
of which are very long and most ACEs are port specific. This uses up a lot
of ACL TCAM LOUs, or logical objects. I didn't discover that until later,
I just want to get a sanity check on some WRED settings. This is a 100G
linecard. If I have a class with bandwidth remaining percent 1
configured, as well as random detect 10ms 20ms configured, I believe that
means that WRED kicks in when the allotted buffer space is 10 ms full. If
I'm reading the
In IOS or IOS XR, is there a way to convert an IGMPv3 join to one S,G into
a join to a different S,G?
For example, if a device on a router joins 10.1.1.1 / 232.1.1.1, is there a
way to translate that to 20.2.2.2 / 232.2.2.2?
I'm thinking of a case where the original S,G is unavailable but we
In this particular use case, anycast won't work for administrative reasons
related to the application. That was my first thought.
On Mon, Feb 17, 2014 at 3:43 PM, Jason Lixfeld ja...@lixfeld.ca wrote:
What about anycast'ing the source?
Sent from my iPhone
On Feb 17, 2014, at 5:37 PM, John
I don't have time at the moment to look up the details, but I seem to
recall that beginning in XR 4.2, there are limitations (or maybe flat
out restrictions) on setting the next-hop on an ingress route policy.
I do know that we had to change several of our route policies to get
around this when
card will
reset dscp value by default, some will trust, e.g ES+ card.
Br,
On 15 Jan, 2014, at 12:27 pm, John Neiberger jneiber...@gmail.com wrote:
We seem to run into this fairly often and I'm curious about it. We use
service policies for ingress DSCP marking. Occasionally, an interface
On Thu, Jan 9, 2014 at 7:47 AM, Ben Hammadi, Kayssar (NSN - TN/Tunis)
kayssar.ben_hamm...@nsn.com wrote:
WS-X6716-10T
I presume that this module uses Janus ASICs for replication. If so,
keep in mind that this chip doesn't have a huge amount of replication
capacity. The ingress Janus chip is
I have a 4948 running 12.2(53)SG2 connected via trunk to an upstream
router. I need to do some testing (long, unrelated story) because
we're having some IPv6-related issues with devices in a certain VLAN
on that switch. I can't test to a production server, so I was thinking
about adding an IPv6
.
http://www.cisco.com/en/US/docs/routers/asr9000/software/asr9k_r4.3/general/release/notes/reln_432a9k.html#concept_49AEDFA126ED408DBD1B04048C1E24B8
-Blake
On Fri, Dec 6, 2013 at 10:40 PM, John Neiberger jneiber...@gmail.com
wrote:
A co-worker is replacing a 7600 with an ASR9K running
A co-worker is replacing a 7600 with an ASR9K running 4.2.3. The 7600
currently terminates a GRE tunnel that requires the tcp mss-adjust
command. Neither one of us can find a similar feature in the XR
command references. Are we just missing it or does this code not have
that feature? It seems like
It would be great if Cisco focus-group tested these 'enhancements' before
rolling them out, and knock it off with the Java nonsense.
It was in beta for months before they released it publicly. I think
the current version is vastly better than when I first saw it. But I
guess they didn't have
:17 PM, John Neiberger jneiber...@gmail.com wrote:
I've been helping to troubleshoot an interesting problem with variable
latency through a 4948. I haven't run into this before. I usually have
seen
really low latency through 4948s, but this particular application requires
consistent low
, but when you were pinging, were you
pinging from hosts, or from the routers?
-Blake
On Thu, Sep 26, 2013 at 9:38 AM, John Neiberger jneiber...@gmail.comwrote:
Thanks! I talked to our Cisco NCE about this and he gave me these
commands:
show qos interface gigabitEthernet x/y- will show you 4
server in the same VLAN could ping it with no latency problems at all.
On Thu, Sep 26, 2013 at 9:12 PM, Fwissue fwis...@gmail.com wrote:
I would try host to host on the same vlan, then consider flow-control
impact
Thanks
~mike
On Sep 26, 2013, at 8:18 AM, John Neiberger jneiber...@gmail.com
hardware, or just giving up and choosing between delaying the microbursts
or dropping them. If it is the second, then have you tried setting up LLQ
and treating your app as EF?
-Blake
On Thu, Sep 26, 2013 at 10:34 PM, John Neiberger jneiber...@gmail.comwrote:
Host to host on the same VLAN
I've been helping to troubleshoot an interesting problem with variable
latency through a 4948. I haven't run into this before. I usually have seen
really low latency through 4948s, but this particular application requires
consistent low latency and they've been noticing that latency goes up on
. If you want drops or something like LLQ to occur instead
for your app traffic, you can tweak the QoS settings appropriately for your
app / switch.
-Blake
On Tue, Sep 24, 2013 at 2:17 PM, John Neiberger jneiber...@gmail.comwrote:
I've been helping to troubleshoot an interesting problem
If I understand the problem, you can implement selective BGP next hop
filtering. That allows you to use a route policy to determine which next
hops are valid. We use it to ensure that no prefix shorter than a /29 is
used to validate next hops in certain situations.
This is the basic idea:
show int interface counters
show ip multicast interface
show ip mroute group count
On Thu, Sep 5, 2013 at 7:33 AM, Harry Hambi harry.ha...@bbc.co.uk wrote:
Wanted to see the multicast traffic counters incrementing/or not, on a
specific port
Rgds
Harry
Harry Hambi BEng(Hons) MIET
I'm trying to run a couple of trace commands and I'm running into something
unusual. When I try show pim trace I get a handful of lines but nothing
useful at all. I should be getting page after page of output, or at least I
would expect that since that's what I see on other CRS that I deal with.
We need to upgrade some ASR9Ks that have a lot of connected devices with
complex interrelationships and we have to do a lot of work to make sure all
the correct redundancy is in place prior to the upgrade. Since the router
takes so long to reload, I'd like to find a way to essentially simulate the
...@gmail.com wrote:
Copy/paste a bunch of null0 routes?
deny any acls on interfaces?
On Wed, Aug 14, 2013 at 10:54 AM, John Neiberger jneiber...@gmail.com
wrote:
We need to upgrade some ASR9Ks that have a lot of connected devices
with
complex interrelationships and we have to do a lot of work
I was about to ask the same question. :-) I'm curious what SR stands for
in this context.
On Wed, Aug 7, 2013 at 9:18 AM, Blake Dunlap iki...@gmail.com wrote:
Ok, I'll bite, what does SR stand for and I'll happily google it myself?
-Blake
On Wed, Aug 7, 2013 at 3:51 AM, Mark Tinka
only?
Whats the command to see punted traffic?
Kim
On Tuesday, August 6, 2013, John Neiberger wrote:
Check the LPTS counters. LPTS (Local Packet Transport Service) is
essentially control plane policing. Here's a page that talks about it.
Most
of the commands are not very user friendly
Check the LPTS counters. LPTS (Local Packet Transport Service) is
essentially control plane policing. Here's a page that talks about it. Most
of the commands are not very user friendly, but it seems to be fairly
powerful.
https://supportforums.cisco.com/docs/DOC-23032
I thing the command you'll
W
e're running into an interesting problem. We have a simple lab setup like
this:
CE1 -- PE1 --- P1 --- P2 --- PE2 --- CE2
We have mpls ip-ttl-propagate disable on all PE and P routers, but if we
trace from CE1 to CE2, we still see an MPLS label coming from the PE2
router. If we trace CE2 to
I think either we're just doing something wrong or perhaps we're running
into a bug. I did find this one, which sounds similar:
https://tools.cisco.com/bugsearch/bug/CSCtd17126
I'm not sure if that is fixed in 4.1.0 or not.
On Tue, Jul 30, 2013 at 11:01 AM, John Neiberger jneiber
at 12:20 PM, John Neiberger jneiber...@gmail.comwrote:
I guess I should rephrase. We have configured mpls ip-ttl-propagate
disable to try to hide the labeled part of the path. For whatever reason,
we always get something like the following:
CE1#trace 10.6.10.1 source lo0
Type escape sequence
ja...@puck.nether.net wrote:
Disable TTL != don't copy label into ICMP TTL Expired message.
- Jared
On Jul 30, 2013, at 1:37 PM, John Neiberger jneiber...@gmail.com wrote:
I think either we're just doing something wrong or perhaps we're running
into a bug. I did find this one, which
was
well.
On Tue, Jul 30, 2013 at 12:28 PM, John Neiberger jneiber...@gmail.comwrote:
After a little more investigation, I think the problem is that our P2
router is not learning a set of prefixes via LDP that it should be, so it
is sending them unlabeled to PE2. We assumed that both P routers had
Yep, same here. Lots of multicast video with IQ probes all over the place.
I really like them. They've saved my neck many times during overnight
maintenance. It's nice to know for sure what is happening around the
network as you make your changes.
On Tue, Jul 16, 2013 at 8:51 PM,
with Mobile
Messaggio originale
Da: John Neiberger jneiber...@gmail.com
Data:
A: jean-francois.d...@videotron.com
Cc: james lavespa dim0...@hotmail.com,cisco-nsp
cisco-nsp-boun...@puck.nether.net,cisco-nsp@puck.nether.net
Oggetto: Re: [c-nsp] multicast issue
Yep, same
This one has me and TAC stumped. Let's say you have a 7600 with multiple
devices connected to it running ISIS. One of them has the wrong
authentication key, so you see a bunch of this in the logs:
%CLNS-4-AUTH_FAIL: ISIS: LSP authentication failed
How do you find out what neighbor is causing
1, 2013 at 11:41 AM, John Neiberger jneiber...@gmail.comwrote:
This one has me and TAC stumped. Let's say you have a 7600 with multiple
devices connected to it running ISIS. One of them has the wrong
authentication key, so you see a bunch of this in the logs:
%CLNS-4-AUTH_FAIL: ISIS: LSP
This box is running 12.2(33)SRC code. The TAC engineer and I haven't really
found a good way to find what we're looking for. I have found some debugs
that confirm that we're having an authentication problem but they also
don't show the source of the problem. Not even an interface.
On Mon, Jul 1,
...@puck.nether.net] Im Auftrag von
John Neiberger
Gesendet: Montag, 1. Juli 2013 18:31
An: Alan Buxey
Cc: cisco-nsp@puck.nether.net
Betreff: Re: [c-nsp] Finding source of ISIS authentication failure
This box is running 12.2(33)SRC code. The TAC engineer and I haven't really
found a good way
the md5
check, 1497 bytes, type 16
ISIS-Adj:
Authentication failed
So the MAC
address and interface is
recorded. Don't you have these debugs or do
your debugs not show this
information?
Best regards,
Daniel Dib
CCIE #37149
2013-07-01 18:31 skrev John Neiberger
Do you have CoPP configured? I've seen this exact behavior when I didn't
have a permit statement for my neighbor or link address in the right ACL,
so it was getting rate-limited to death.
On Fri, Jun 28, 2013 at 8:33 AM, Matthew Huff mh...@ox.com wrote:
Trying to bring up a new BGP peering
can’t get a TCP session established.
** **
Matthew Huff | 1 Manhattanville Rd
Director of Operations | Purchase, NY 10577
OTA Management LLC | Phone: 914-460-4039
** **
*From:* John Neiberger [mailto:jneiber...@gmail.com]
*Sent:* Friday
Sweet! I've had CoPP filters bite me many times. Everything else will look
right but the dang thing just won't work. It can be pretty frustrating to
troubleshoot since CoPP usually isn't the first thing people think of.
John
On Fri, Jun 28, 2013 at 9:20 AM, Matthew Huff mh...@ox.com wrote:
I'm not at a router right now, so I can't check this, but do you you get
better (or different) results if you do show mfib hardware route
statistics instead? That doesn't show rate information, but it seems to
update very quickly as I recall.
John
On Wed, Jun 26, 2013 at 3:07 AM, Adam Vitkovsky
That's an excellent point. The 7600 in our scenario does not have dual RPs.
The Cisco BU is involved, so I will mention this to them.
Thanks!
John
On Wed, May 22, 2013 at 12:24 AM, Mikael Abrahamsson swm...@swm.pp.sewrote:
On Tue, 21 May 2013, John Neiberger wrote:
the 7600, which the CRS
We ran into an interesting issue recently and I'm not sure what to think of
it. We have a 7600 and a CRS peering via eBGP. The session was shutdown on
the 7600, which the CRS immediately recognized, but the CRS continued to
use those BGP routes until the neighbor's graceful restart timer expired.
We ran into an interesting problem last night and I'm a little stumped. It
appears that PIM did not follow a unicast routing change after a BGP peer
was shutdown. Imagine this simple topology:
[A] - [B] -- [C] --- [D]
|
|
|
[D]
Router A is a CRS and is forwarding PIM joins
This is one of the strangest things I've ever seen. We have an ASR9K
(Router A) connected to a 7600 (Router B) via simple L3 link with no ACLs.
We can ping from Router A to Router B, and we can ping from Router A to a
different L3 interface on Router B. However, we cannot trace from Router A
to
...@geneseo.edu wrote:
On 4/1/2013 11:36 AM, John Neiberger wrote:
I honestly don't know what to think about this. I don't think I've ever
seen anything like it.
I didn't have an ACL in the way, but I did have a policy route map in
place, which was a little too aggressive, one upon a time. Similar
.
On Mon, Apr 1, 2013 at 10:10 AM, Harold 'Buz' Dale buz.d...@usg.edu wrote:
Is your traceroute sourced from a different IP?
-Original Message-
From: cisco-nsp-boun...@puck.nether.net [mailto:
cisco-nsp-boun...@puck.nether.net] On Behalf Of John Neiberger
Sent: Monday, April 01
. The
interfaces in question are plain L3 interfaces with barely more than an IP
address configured. I'm not nearly awake enough to deal with this sort of
weird behavior. :)
On Mon, Apr 1, 2013 at 9:39 AM, Rick Coloccia coloc...@geneseo.edu
wrote:
On 4/1/2013 11:36 AM, John Neiberger wrote:
I
I'm leaning toward some sort of bug. I've expanded my testing and see that
any time I trace to something that is not replying, ICMP polls to the ASR9K
fail. As soon as I kill the failing trace, polling is immediately
successful.
On Mon, Apr 1, 2013 at 10:29 AM, John Neiberger jneiber
This has been confirmed as a known bug. I can't believe I haven't run into
it before. We're running this same code on several routers and I've never
noticed it. I guess that's yet another reason to upgrade. :)
On Mon, Apr 1, 2013 at 10:39 AM, John Neiberger jneiber...@gmail.comwrote:
I'm
On Mon, Apr 1, 2013 at 12:42 PM, Jeff Aitken jait...@aitken.com wrote:
On Mon, Apr 01, 2013 at 10:45:29AM -0600, John Neiberger wrote:
This has been confirmed as a known bug. I can't believe I haven't run
into
it before. We're running this same code on several routers and I've never
I was just reading a bit about next-hop tracking and neighbor fall-over and
now I'm a little confused about what fall-over actually does. The docs say
that it enables fast peering session deactivation, but I can't tell what
that really means. The wording in the docs makes it sound a lot like BFD,
On Mon, Mar 11, 2013 at 11:12 AM, Oliver Boehmer (oboehmer)
oboeh...@cisco.com wrote:
Can someone shed some light on this? What is fall-over really doing and
when might it be useful?
sorry for the confusion ;-) neighbor fall-over (without the BFD keyword)
is for
On Mon, Mar 11, 2013 at 11:29 AM, Bruce Pinsky b...@whack.org wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
John Neiberger wrote:
In the case I'm thinking of using it, we do all over our internal BGP
peering to loopbacks, which are in OSPF. If we enable fallover, it sounds
like
Thanks, Oliver! That explains exactly what we were seeing. We doing have a
multicast AF enabled in our IGP on the affected routers, so now I
understand why we needed the additional replication commands.
Thanks again,
John
On Fri, Mar 1, 2013 at 5:06 AM, Oliver Boehmer (oboehmer)
I ran into an issue today that I hadn't seen before. I was helping someone
troubleshoot some multicast problems where everything seemed to be correct
but the joins weren't working. I was totally stumped until someone noticed
the following:
router rib
address-family ipv4 unicast
rump
just what I'm thinking, so far.
On Sat, Feb 9, 2013 at 3:25 AM, Phil Mayers p.may...@imperial.ac.uk wrote:
On 02/09/2013 05:05 AM, John Neiberger wrote:
1. What triggered the OOB resync in the first place?
I assume there is nothing in the logs for the device, or adjacent devices,
at the time
the router
think it is restarting. It's really difficult to tell. I'd never even heard
of OOB Resync until last night, so much of this is new to me.
On Sat, Feb 9, 2013 at 8:26 AM, John Neiberger jneiber...@gmail.com wrote:
It's a new-ish Checkpoint firewall, but I have no idea what code it is
running
This is a new one on me. We had a situation where OSPF between a router and
a firewall seemed to go insane and it involves something I've never heard
of before: Out of band Resync. Here are the logs from the beginning of the
event:
Feb 8 23:32:45.777 UTC: %OSPF-5-ADJCHG: Process 100, Nbr 1.2.3.4
, Feb 8, 2013 at 9:28 PM, John Neiberger jneiber...@gmail.com wrote:
This is a new one on me. We had a situation where OSPF between a router
and a firewall seemed to go insane and it involves something I've never
heard of before: Out of band Resync. Here are the logs from the beginning
** **
*From:* John Neiberger [mailto:jneiber...@gmail.com]
*Sent:* Wednesday, January 30, 2013 6:16 PM
*To:* David Prall
*Cc:* Adam Vitkovsky; cisco-nsp@puck.nether.net
*Subject:* Re: [c-nsp] MPLS VPN over mGRE
** **
That's exactly right. The part I can't figure out is what triggers
The type of MPLS VPN over mGRE that we're using doesn't use a preconfigured
tunnel interface or NHRP. As I understand it, the peers share
tunnel-related information in vpnv4 updates using a SAFI of 64. This tells
the other peers that those prefixes are related to the mgre tunnel and that
signals
...@puck.nether.net [mailto:cisco-nsp-
boun...@puck.nether.net] On Behalf Of John Neiberger
Sent: Wednesday, January 30, 2013 10:55 AM
To: Adam Vitkovsky
Cc: cisco-nsp@puck.nether.net
Subject: Re: [c-nsp] MPLS VPN over mGRE
The type of MPLS VPN over mGRE that we're using doesn't use a
preconfigured
I was reading through the configuration guide for MPLS VPN over mGRE to try
to reverse engineer a configuration we have at work. This kind of hurts my
head, but I think I've almost got it. The method we use is basically the
same as this:
A few of us at work have been discussing autonegotiation in gigabit
Ethernet networks and I wanted to get a clarification. I know that on Cisco
devices with Fast Ethernet, if you manually set speed and duplex, this
disables Nway autonegotiation completely. However, I don't think that is
the case
We have static routes on the ASBRs that point to the loopback of the eBGP
peer, then we redistribute those statics into ISIS. If a peer loopback goes
away, the network converges pretty quickly to the other available
connections.
But thinking about that, it once again makes me wonder why we are
In the part of the network I'm thinking of, we do use iBGP, so the peers
all learn the default in BGP. However, we also configure the routers with
eBGP peers to originate defaults into the IGP, presumably for faster
convergence, although given the design I really don't know that convergence
will
This is sort of a follow-up to a question I had a few weeks ago about how
to configure conditional default origination in IOS XR. It seems that ISIS
default origination in both IOS and IOS XR behaves in a pretty suboptimal
way. I don't have a lot of history with IS-IS, so I'm curious about this.
I do recall opening a TAC case on something like this about a year ago. We
also were not seeing rates in our multicast traffic. As I recall, they said
it was a bug, but I don't have any details. I'll see if I can find the case
notes. We were running 4.0.1 at the time.
On Fri, Jan 11, 2013 at
I've noticed that in IOS XR, if you have default-information originate
configured in ISIS, it will behave similar to default-information
originate always in OSPF. It will advertise a default whether or not it
has learned one from an external source. I thought this was a bug, but now
I'm starting
Ah, Nevermind. I found it. You configure a route policy that matches on if
rib-has-route and you specify the next-hop you're looking for. In my case,
that will work just fine.
On Wed, Jan 9, 2013 at 3:25 PM, John Neiberger jneiber...@gmail.com wrote:
I've noticed that in IOS XR, if you have
I just noticed something that I thought was interesting. In IOS, at least
on the platform and image I tested, changing an interface MTU after an OSPF
adjacency is full will not affect the adjacency. So, if you need to change
a link MTU after OSPF is up and running, it should not affect routing.
I'm still a noob to this sort of configuration, so I just have a question.
Does it matter that the next hop is in the default global table and not in
the VRF?
John
On Fri, Dec 28, 2012 at 2:58 PM, Jason Lixfeld ja...@lixfeld.ca wrote:
Hi there,
Unless I'm doing something really silly, I
On Fri, Dec 7, 2012 at 10:52 PM, Randy a...@djlab.com wrote:
On 12/07/2012 5:57 pm, Justin M. Streiner wrote:
On Fri, 7 Dec 2012, Randy wrote:
User complained his ipv6 gw on his vlan interface was down. On
checking, I couldn't ping it either from the local router.
This looked
I ran into an interesting situation where I think I understand what is
happening, but I can't find any documentation about the path selection
process that specifically addresses this.
We have a router--let's call it Router A--that has learned a prefix via
iBGP from two route reflector clients.
. What about cluster length? Nope, it's the same. Lastly, is it
choosing this new path because the neighbor's IP address is lowest?
AgainNO!
So, what the heck? I'm really stumped.
On Fri, Nov 30, 2012 at 2:42 PM, John Neiberger jneiber...@gmail.comwrote:
I ran into an interesting situation where
-learned next hop with a MED of 0. I wouldn't have expected that
behavior at all!
On Fri, Nov 30, 2012 at 6:55 PM, John Neiberger jneiber...@gmail.comwrote:
I've been doing some more testing and I even talked to a couple of guys
from Cisco Advanced Services and I still don't understand exactly what
Thanks, that's exactly what I was looking for! I appreciate the help.
John
On Sat, Oct 20, 2012 at 1:59 AM, Saku Ytti s...@ytti.fi wrote:
On (2012-10-19 09:22 -0600), John Neiberger wrote:
I've been beating my head against my desk to remember the command that
shows the port-to-Janus mappings
I've been beating my head against my desk to remember the command that
shows the port-to-Janus mappings and the port-to-Metro mappings. I
thought for sure there was one. I can never remember how ports are
mapped to the Metropolis asics. I just remember it's some oddball
mapping. Do any of you
I have an interface on a 4948 that is reporting increasing giants and
input errors. The MTU is the default 1500 and so is the interface on
the other side of the link. This is a dot1q trunk, if that is
relevant.
7600 Side:
GigabitEthernet3/3 is up, line protocol is up (connected)
Hardware is
for you:
show configuration history last 10
show configuration commit changes commit-id
This is on ver 4.2.1...
On 09/10/2012 12:28 AM, John Neiberger wrote:
On Sun, Sep 9, 2012 at 3:36 PM, Gary Buhrmaster
gary.buhrmas...@gmail.com wrote:
On Sun, Sep 9, 2012 at 5:08 PM, John Neiberger
We had a linecard fail on an ASR9K and I wanted to verify what was
connected to it. However, since the card was down, all configuration
information was hidden. How do I see the interface configurations for
a module that is not currently active? In other words, how do I see
what config will be
On Sun, Sep 9, 2012 at 3:36 PM, Gary Buhrmaster
gary.buhrmas...@gmail.com wrote:
On Sun, Sep 9, 2012 at 5:08 PM, John Neiberger jneiber...@gmail.com wrote:
... In other words, how do I see
what config will be enabled once a new linecard is inserted?
Check your rancid (backup) configuration
An app owner (Oracle database) has recommended that we enable fabric
buffer-reserve high to solve some Oracle problem they seem to be
running into. We haven't had a chance to investigate their problem
yet, so we're not going to change that just because they asked us to.
However, I'm curious about
This has come up a few times recently. We continue to run into new
situations where we see lots of output queue drops on 6748 blades,
especially in cases where a 10g link is feeding a 1g link. We see OQDs
long before the interface approaches anything close to line rate on
average. Cisco has never
be on microbursts if we enabled shaping. Would that give us any
additional short-term buffer space?
Thanks again,
John
On Aug 17, 2012 2:44 AM, Phil Mayers p.may...@imperial.ac.uk wrote:
On 08/17/2012 07:02 AM, John Neiberger wrote:
This has come up a few times recently. We continue to run into new
On Aug 17, 2012 7:57 AM, Phil Mayers p.may...@imperial.ac.uk wrote:
On 17/08/12 14:48, John Neiberger wrote:
Thanks, I suspected that was the case or it would have been mentioned
before. We have played around with different queuing parameters and
queue depths, but I'm trying to find some
On Fri, Aug 17, 2012 at 8:36 AM, Phil Mayers p.may...@imperial.ac.uk wrote:
On 17/08/12 15:29, John Neiberger wrote:
Can you be more specific here? Where would you shape?
I was wondering if an outbound shaping policy on the 1g links would
smooth out the peaks of those bursts prior to them
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