I have a friend who has been gifted with two new Cisco 881s and strict
orders to get multicast flowing between two locations using a GRE tunnel.
We're happy with our IP routing, tunnel protection won't be a problem, but
it's been forever since I touched multicast and these things show no signs
These two machines are connected direct over a hundred yards of single
mode fiber. The link is up, carrying a lot of traffic, no errors, no log
entries.
I recently wiped out NAT on one of them and I have scrubbed
redistribution on both, so only the connecteds that needed it are handled in
I have the following two 6509s connected via a short single mode fiber run -
they're about a hundred yards apart. BGP sessions between them bounce on the
BGP timer and never properly establish. This link carries a lot of traffic
and it never stumbles, not in terms of anything in logs, no errors on
:
On Wed, Mar 30, 2011 at 1:33 PM, Neal Rauhauser
neal.rauhau...@gmail.comwrote:
I have the following two 6509s connected via a short single mode fiber run
-
they're about a hundred yards apart.
Are you sure the fiber and path are ok? patch panels, sfp's etc.. I've
replaced good fiber
I've just inherited a plant with a few dozen WS-C2950-EI doing access
duty - an apartment complex. We've had just ridiculous stuff, like certain
models of customer NAT device that will helpfully reforward an unknown
unicast frame(!), and I've pretty well had my fill of Windows antics on this
well here.
HTH,
On Wed, Mar 16, 2011 at 2:13 PM, Neal Rauhauser
neal.rauhau...@gmail.comwrote:
I've just inherited a plant with a few dozen WS-C2950-EI doing access
duty - an apartment complex. We've had just ridiculous stuff, like certain
models of customer NAT device
I have to do an L2TPv3 link (hoping it can move entire 802.1Q streams)
and I'm puzzling over which version of IOS is best. I have a 7206 /w NPE 300
on one side and a 7140 on the other, would like to use the same code on
both.
And where the heck can I get schooled on the plethora of trains
I have a pair of 7200s at two locations with a 155mbit radio link between
them. We're hooking up PA-POS across this and I am wondering how to best
bridge across the link.
Yes, I have to bridge. I've looked at it every which way, we're replacing
a metro fiber transport for another provider so
I have just received a couple of Catalyst 6509s that are destined for a
small exchange point. They've got SUP2-2GE /w PFC2, eight port 6408 GBIC
blades, and flexwan blades that will be taking POS ATM WAN interfaces.
They'll be running BGP+OSPF and not much else.
I see one has 8.6.4 CatOS
I have a UBR 7223 under my care and I've got the following code on it:
1 -rw-19770888 Aug 17 2006 21:19:32 -05:00
ubr7200-k8p-mz.123-9a.BC9.bin
2 -rw-23077708 Jul 16 2009 10:47:46 -05:00
ubr7200-ik9su2-mz.123-23.BC7.bin
The machine has this linecard in it:
Slot 2:
I have a situation with a former employee who still has legitimate
physical access to a shared space where we have some Cisco equipment. Today
one of our field guys located a UBR924 attached to our cable modem plant
with the cutest little rogue Linux machine attached to its ethernet port.
I
://www.ox.com | Phone: 914-460-4039
aim: matthewbhuff | Fax: 914-460-4139
-Original Message-
From: cisco-nsp-boun...@puck.nether.net [mailto:cisco-nsp-
boun...@puck.nether.net] On Behalf Of neal rauhauser
Sent: Monday, July 13, 2009 5:11 PM
To: cisco-nsp@puck.nether.net
Subject
I have a Cisco 7507 with a PA-POS-OC3 in a VIP. This is attached to some
sonet transport that ends at some sort of Juniper router. I think the tech I
got is pretty new to the large boxes and we've spent some time wrestling
with turn up. I don't know Juniper but this is what I've been sent as the
I have a Cat 2924 with a port facing an old Waverider radio. I've got
about 80 MACs live on the interface, it's got a steady 5% error rate, and
the net effect is that it's behaving like WRED with a nearly full cue -
traffic for all slows to a crawl.
I've been fiddling with it a bit trying to
I do believe we'll be seeing new code from Cisco before too long and I'm
starting to get ready for that. We've got 12.0S in the field now and I'm
bringing one machine up to 12.2.46a to see how it acts. I've got 256 meg
RSP4s, VIP 2-50 that are getting upgraded to VIP4-80 this week, OC3 and DS3
I've just stepped into a real mess - cable modem provider who lost their
techs ten days ago ... and on Thursday their entire FreeRadius setup just
mysteriously vanished ... on two different boxes(!)
Can someone quickly tip me as to how to let cable modems work without
requiring radius auth?
This one is a real head scratcher for me. I've got two 7206s, both running
c7200-p-mz.123-22.bin, both with identical PAs. One is in production, the
other is a hot spare. I got frustrated enough with trying to get QoS set up
that I pulled this config line for line from an example on CCO:
Felix,
The IP in IP encapsulation slips right through any provider, while GRE
is protocol 47 and may be filtered (just like PPTP). I use both with
primarily EIGRP as the IGP in the tunnel and they both work fine. Do look
into the tunnel protection mode stuff - much easier than
I would say the first step is determining who the target audience is for
the documentation - what are the business drivers behind it?
I've got a customer who happily pays for me to drawn pictures, comment up
configs, label cables, write maintenance procedures intended to cover them
if
My knowledge is rather dated, but if I recall correctly RFC 1001/1002
govern NetBIOS over TCP networking. The systems have four modes of
resolution - broadcast, point to point, and then the two methods combined
with either broadcast or point to point primary. This has likely changed
with the M$
Actually you might be pleasantly surprised with an IPv6 attack on a 3550
- I suspect the IPv4 traffic would just keep on truckin', less any routing
updates that might arrive during the event. I had a customer with about 14k
public IP addresses passing through a 3550. The machine was crazy
situation, I would expect there are a number of
network engineer types that would love a telecommute position.
Roy
neal rauhauser wrote:
Seven months ago I limped home to momma, nursing a back injury and
intending to help get the farm ready for sale, as she is ready to move
to
town. Now
Seven months ago I limped home to momma, nursing a back injury and
intending to help get the farm ready for sale, as she is ready to move to
town. Now that I've been here a while I'm inclined to stick around, but not
even the ISPs up here are multihomed.
Right now I help drive a regional
The ip route 0.0.0.0 0.0.0.0 is to allow the machine to forward traffic.
The ip default-gateway allows the management module of a device to send
traffic for nonlocal destinations - a machine that does not route such as L2
switches or am achine that has routing turned off will use the
Can anyone comment on RSP redundancy with SSO mode?
I have a test 7507 with rsp-k4pv-mz.120-32.S8.bin on both RSP2s. I've done
this:
service single-slot-reload-enable
redundancy
no keepalive-enable
mode sso
And it doesn't seem to ever sync the slave
ranttest#show red
Redundant System
Is Cisco-NSP really the place to ask a class project type question? I
would think you'd get more play on the Groupstudy Cisco certification
mailing list.
On Dec 6, 2007 12:18 AM, Mad Unix [EMAIL PROTECTED] wrote:
Building New office Building
We are in the planning stage of a new building
Ladies Gentlemen,
I have a customer with PA-POS-OC3 cards installed in a pair of
Cisco 7507s. Right now they can physically remove the line from the
first machine, plug it into the second, and things neatly switch over.
They've asked me to come up with a remote control method of
I imagine some of you are using the Internap FCP product. How do you find
it? I've just spoken with their sales and technical staff - got a customer
evaluating it - I wanted to hear real world stories. My guys have a couple
of routers, a couple of upstreams, and they're about to add a couple of
I have a customer who is going to provide peering links from a 7507 to two
different customers. They're going to take full routes and we're expecting
25 - 50 mbits of traffic from each. Is a VIP2-50 with two PA-FE-TX going to
handle this or will the extra juice of the VIP4-50 be required?
Well, BOFH style, I would say you put them where you need them :-)
We had a problem with this last month - burned up a PA-POS-OC3 due to
having it on only 800' of dark fiber. We bought 3dB through 15dB attenuators
from Fiber Instrument Sales along with an inexpensive test kit ($1,000 or
so)
I have some 7507s under my care with RSP4s taking full routes from Sprint
and McLeod. We were getting tight on memory so we stopped accepting all /24s
except 192.0.0.0/7. The memory usage reported by sh ip bgp su dropped from
about 57 meg to half of that, but show proc mem still appears to be
I cleared them soft when I made the changes. I'll try a hard clear next -
thanks.
On 10/14/07, Oliver Boehmer (oboehmer) [EMAIL PROTECTED] wrote:
neal rauhauser wrote on Sunday, October 14, 2007 6:40 PM:
I have some 7507s under my care with RSP4s taking full routes from
Sprint
BGP requires memory to store routes. The 2610 maxes out at 64 meg. The
3550 is hardwired with 64 meg. They're equivalent in terms of storage space
and I think roughly equivalent in processing power. I think a 64 meg box
starts to have trouble around 50k routes if I'm recall correctly. If all the
Is it a WIC-1DSU-T1? And you need a WIC-1DSU-T1-V2 for the 18xx/28xx/38xx
series ... if it came out of an older router this is likely the case.
On 8/28/07, Ed Ravin [EMAIL PROTECTED] wrote:
We just stuck a WIC-1DSU-T1 removed from service on a different
router into a 2801. The router says
I have a 7206 with NPE-G1, upgraded from 12.2.15T11 last night to
12.3.22 lawful intercept and simultaneously taking from 256m to 1024m of
memory.
The system has BGP peers and a couple of thousand DSL customers
attached (I know, I know, OS and memory upgrade are part of me splitting
it
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