Hi,
On Tue, Apr 07, 2009 at 05:23:17PM -0400, Bill Wichers wrote:
I typically set both ends (router and switch) of these links to 100/full
since I've seen weird autonegotiation problems before. This works just
fine for individual FE links, but as soon as I bring up the Etherchannel
group both
One of my carriers has given me a choice for a new circuit delivery: T3
or Ethernet. My outside world circuit experience is all non-Ethernet, so
I have a few questions the sales group wasn't able to answer. I'd love
to hear some real world experience. The cost difference between the two
is not
Yes it's BGP.
At 07:44 08/04/2009, Aftab Siddiqui wrote:
What routing protocol you are runnging with your upstream. It should
be BGP I guess.
On Tue, Apr 7, 2009 at 8:36 PM, RAZAFINDRATSIFA Rivo Tahina
mailto:r.tah...@moov.mgr.tah...@moov.mg wrote:
Hi all,
We have two upstreams and our
Bill Wichers wrote:
I typically set both ends (router and switch) of these links to 100/full
since I've seen weird autonegotiation problems before. This works just
fine for individual FE links, but as soon as I bring up the Etherchannel
group both member links on the router end drop back to
Hi Seth,
I think the world is moving to ethernet for what traditionally was a leased
line, so you are only going to see more of it.
Don't forget in your cost calculations the CPE line card, compare the cost of a
router (or switch) with a spare Ethernet port and one with a 2Meg serial card.
Justin Shore wrote:
Justin M. Streiner wrote:
Is there an active access port in VLAN 999 on the 4948, or somewhere
downstream of it, assuming any neccessary trunking at the site is
already in place? I've seen VLANs not come up before, until there is
actually a host in the VLAN.
There is an
hi tassos,
i'm really scared when using a fairly new platform with a fairly new
software version. i would prefer paying more money for a more stable
device. and this fear of mine goes back to the SRB2 version for the
Cisco 7600 which is the worst thing that could happen for the 7600.
anyways, the
Hi,
What's the maximum length of you can run async-serial (9600 baud) over
CAT5e (from a terminal server to console port).
My google-fu has failed me.
Sam
___
cisco-nsp mailing list cisco-nsp@puck.nether.net
Sam Stickland wrote:
Hi,
What's the maximum length of you can run async-serial (9600 baud)
over CAT5e (from a terminal server to console port).
My google-fu has failed me.
If I remember correctly, the spec for RS-232 says the maximum
capacitance of a cable can be 2500pF at 20kbps. A
At certain point of time, I was testing NAT with just test tools, sending
various forms of raw TCP, UDP and just IP traffic. I was able to get about 150k
simultaneous translations at 2Gbps doing very low packet sizes. I definitely
remember doing it with IMIX. I do remember seeing issues with
Hi,
On Wed, Apr 08, 2009 at 12:14:52AM -0700, Seth Mattinen wrote:
How do you detect a down condition on Ethernet? My experience is that
the interface could be up/up because Ethernet doesn't know about
anything further down the line and ends up throwing packets into a
magical black hole. Or
-Original Message-
From: cisco-nsp-boun...@puck.nether.net
[mailto:cisco-nsp-boun...@puck.nether.net] On Behalf Of Seth Mattinen
Sent: Wednesday, April 08, 2009 3:15 AM
To: cisco-nsp
Subject: [c-nsp] T3 or Ethernet delivery?
How do you detect a down condition on Ethernet? My experience
Generally my experience with Ethernet handoffs has been hit or miss
depending on what the carrier is delivering for the hand off - I've dealt
with some gear as you alluded to that doesn't down the CE hand off when the
circuit goes which turns into an interesting game of routing protocol timers
and
On Wed, Apr 8, 2009 at 2:14 AM, Seth Mattinen se...@rollernet.us wrote:
One of my carriers has given me a choice for a new circuit delivery: T3
or Ethernet.
I would go for Ethernet in a heartbeat.
The cost difference between the two
is not significant enough to be the sole deciding factor
For us, price =is= the deciding factor. A 45Mb ethernet service costs
us much less than a real T3.
We replaced a T3 circuit with a 45Mb ethernet service and then
discovered that the RTT went from 12ms on the T3 to 39ms on the
ethernet circuit. Much discussion with the provider about
On 4/7/09, Bill Wichers bi...@waveform.net wrote:
[snip]
... and the context of *this* discussion is likely involving PA-FE-TX's,
which are quite old hardware, and cannot do any sort of autoneg.
True, so the ports should probably be nailed to full at both sides.
Correct, they are
Hello Manu,
Well the Foundry MLX/XMR is a layer 2 switching platform that evolved
into a layer 3 switching platform that evolved into a mpls switching
platform much like the 6500/7600. The MLX and XMR are basically the
same hardware sold as the core switching platform and the core routing
to detect a failure when the link is still up, you can use ip sla to ping the
downstream router. You can then use embedded event manager to track your sla
and trigger an event upon failure. The event could be to email you, send an
snmp trap, or run a tcl script such as changing static routes.
On Wed, 8 Apr 2009, Jeffrey Ollie wrote:
How do you detect a down condition on Ethernet? My experience is that
the interface could be up/up because Ethernet doesn't know about
anything further down the line and ends up throwing packets into a
magical black hole. Or worse, secret packet loss.
I would go with Ethernet services just for the sheer flexibility. With
regard to your concerns of monitoring link state, you can use Ethernet
demarcation devices such as the ISG 2X series from Overture to solve that.
Think of it as an Ethernet Smart Jack. It provides some pretty neat
testing
It might be supported but you don't get 10GB with it.
Aaron
On Mon, Apr 6, 2009 at 21:12, Stephen Fulton s...@lists.esoteric.ca wrote:
According to the SIP/SPA compatibility matrix:
Nom. Capacitance @ 1 KHz:15 pF/ft. for cat 5e
On Wed, Apr 8, 2009 at 07:31, Richard Halfpenny
richard.halfpe...@exa-networks.co.uk wrote:
Sam Stickland wrote:
Hi,
What's the maximum length of you can run async-serial (9600 baud)
over CAT5e (from a terminal server to console port).
You don't say want services you are planning on running. Full-bgp? That
would have an impact on memory requirements.
On Wed, Apr 8, 2009 at 08:09, Deric Kwok deric.kwok2...@gmail.com wrote:
Hi
Do you know Cisco 2651XM is fine for 100M network?
If the memory is 256M, it is ok?
Can it
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Cisco Security Advisory: Multiple Vulnerabilities in Cisco ASA Adaptive
Security Appliance and Cisco PIX Security Appliances
Advisory ID: cisco-sa-20090408-asa
http://www.cisco.com/warp/public/707/cisco-sa-20090408-asa.shtml
Revision 1.0
On Wed, 2009-04-08 at 13:22 +0800, ying-xiang wrote:
following is my topology brief：
SwitchA---PE1（7609-1）---PE2（7609-2）---SwitchB
Both switchA and switchB are configured a vlan100 to achieve layer two
transport through EoMPLS and they works without any issue
but i got an error when i
Anyone know if the show dot11 network-map output on 1200 series access
points shows either;
1. neighbouring access points it can see over the dot11 radio interface
2. neighbouring access points it can see over the wire within the same
subnet
I am thinking option 2 but cannot find anything
I've found that some carriers consider Ethernet something of a toy
whereas TDM and SONET circuits are considered more mission critical.
Basically our local engineering gusy say that the Ethernet links are
just a bunch of jumpers in COs, and by that they mean a single link
patched through to where
RS-232 has more limitations than just cable capacitance. RS-232 is a
single-ended communication protocol (on the physical level), so it's
noise immunity is not very good. This is especially a problem if you're
running the cable in an electrically noisy environment (like a cable
tray or wiring
According to Cisco:
265x(XM) is capable for the following performance for IP packets:
in CEF switching: 4 PPS and around 21 Mbps
Janos Mohacsi
Network Engineer, Research Associate, Head of Network Planning and Projects
NIIF/HUNGARNET, HUNGARY
Key 70EF9882: DEC2 C685 1ED4 C95A 145F 4300
Bill Wichers wrote:
RS-232 has more limitations than just cable capacitance. RS-232 is a
single-ended communication protocol (on the physical level), so it's
noise immunity is not very good. This is especially a problem if you're
running the cable in an electrically noisy environment (like a
Bill Wichers wrote:
I've found that some carriers consider Ethernet something of a toy
whereas TDM and SONET circuits are considered more mission critical.
Basically our local engineering gusy say that the Ethernet links are
just a bunch of jumpers in COs, and by that they mean a single link
Deric Kwok wrote:
Hi
Do you know Cisco 2651XM is fine for 100M network?
You aren't likely to get line rate 100 meg out of it.
If the memory is 256M, it is ok?
Can it support Virtual private network, VLAN and new tcsh command?
It'll do crypto (slowly). You'll need a crypto AIM if you're
All,
I've heard that Cisco devices handle ICMP at a low priority. I found one
post describing it handled in process-switching and not fast-switching.
Does anyone have an article that explains that process and is it
configurable?
The reason I ask is I see about 4% packet loss when I ping devices
On Wed, 2009-04-08 at 10:54 -0700, Seth Mattinen wrote:
Can it support Virtual private network, VLAN and new tcsh command?
It'll do crypto (slowly). You'll need a crypto AIM if you're going to do
anything serious with it.
Agreed. We had a 2651XM with a single GRE+IPSec tunnel once and it
Ruben Alvarez wrote on Wednesday, April 08, 2009 20:04:
All,
I've heard that Cisco devices handle ICMP at a low priority. I found
one post describing it handled in process-switching and not
fast-switching. Does anyone have an article that explains that
process and is it configurable?
A big thank you to everyone who shared their wisdom. I'm going to go
back and ask them how they plan on delivering the circuit. If it is TDM
all the way up to the building and the difference is purely which card
they put in their shelf to hand it off to me, then there's not much
point in paying
Hey all
is there any tool that can monitor the DNS behavior ??
for example , the resolving process and if there are any errors ??
Thanks
_
Drag n’ drop—Get easy photo sharing with Windows Live™ Photos.
Could you elaborate a little?
We use Nagios to monitor other things, and use a DNS check plugin that
simply does a dns query and reports if it successfully got an answer. I
think there are other ones that will compare the answer to a known good
answer you supply (wouldn't work well with
Without knowing more about what you are specifically trying to
accomplish, dig is the tool you are looking for.
-Steve
-Original Message-
From: cisco-nsp-boun...@puck.nether.net
[mailto:cisco-nsp-boun...@puck.nether.net] On Behalf Of Mohammad Khalil
Sent: Wednesday, April 08, 2009 2:40
Ruben Alvarez wrote:
All,
I've heard that Cisco devices handle ICMP at a low priority. I found one
post describing it handled in process-switching and not fast-switching.
Does anyone have an article that explains that process and is it
configurable?
The reason I ask is I see about 4% packet
We are facing some browsing problems , so we want to make sure that our DNS
servers are resolving well using tools other than nslookup
Date: Wed, 8 Apr 2009 14:42:50 -0700
From: walter.k...@rainierconnect.net
To: eng_m...@hotmail.com
CC: cisco-nsp@puck.nether.net
Subject: Re: [c-nsp] DNS
Generally speaking, Muhammad is correct. From personal experience, you
are going to find a lot of limitations on the switching platform when
you try to implement this, though. The switching platforms vary
significantly in their abilities to classify traffic and police in
different directions.
On Thu, 2009-04-09 at 00:39 +0300, Mohammad Khalil wrote:
is there any tool that can monitor the DNS behavior ??
for example , the resolving process and if there are any errors ??
If you want to monitor this from a Cisco device, IP SLA Monitor type
dns is the thing to search for. It can do DNS
[snip]
I typically set both ends (router and switch) of these links to
100/full
since I've seen weird autonegotiation problems before. This works
just
fine for individual FE links, but as soon as I bring up the
Etherchannel
group both member links on the router end drop back to unknown
Hi there.
We have 7606's with dual Sup720-3BXL. I'm investigating how to get the
fastest possible failover if/when a supervisor fails.
Current config looks like this:
my state = 13 -ACTIVE
peer state = 8 -STANDBY HOT
Mode = Duplex
Unit = Primary
On 09/04/2009, at 12:08 AM, Jon Lewis wrote:
With BGP, you might tune the timers shorter than default so that
such a break gets noticed sooner. With a T3, BGP would find out
about the break as soon as the interface went down.
BGP with BFD would work well for this. It's not as clean as
did you try enable nsf if it is possible? there are some limitation on
mpls-te
On Wed, Apr 8, 2009 at 4:44 PM, Paul Stewart p...@paulstewart.org wrote:
Hi there.
We have 7606's with dual Sup720-3BXL. I'm investigating how to get the
fastest possible failover if/when a supervisor fails.
Do all linecards also have DFC's? Do you have nsf/graceful-restart
configured for all routing protocols? What linecards are you using?
David
--
http://dcp.dcptech.com
-Original Message-
From: cisco-nsp-boun...@puck.nether.net [mailto:cisco-nsp-
boun...@puck.nether.net] On Behalf Of
Hi list,
is it feasible to broadcast video/voip + internet over DSL like lets say I
deploy a cisco DSLAM infra in a 20 storey building. It would run over a
media server solution and a VOIP network. I am not sure if this would be a
stable solution considering I want to broadcast HD and SD alike
For the archives, the answer from my SE is yes, the SIP-400/SPA-(2|5)X1GE-V2 can
appropriate in a core and edge facing role, on a per-port basis.
-- Stephen
Stephen Fulton wrote:
According to the SIP/SPA configuration guide for the 7600, the SIP-400
with a SPA-2X1GE-V2 or a SPA-5X1GE-V2, can
Using an IneoQuest cricket we've been trying to find out why multicast
video streams are breaking up.
Using an ME3400 as an access device these are our symptoms:
3 x MPEG4 HD streams (8-10MBps each) come through fine.
Add one more stream and the Cricket says we've got problems.
On aggregate
What is connected to your SUP-720 Gi7/1 interface? Can you post the
output of 'show int gi7/1'?
-Original Message-
From: cisco-nsp-boun...@puck.nether.net
[mailto:cisco-nsp-boun...@puck.nether.net] On Behalf Of Mesiatowsky,
Shawn
Sent: Tuesday, April 07, 2009 11:11 AM
To:
Hello Chris,
Before deployment you have to consider certain point:
- What flavour of DSL you will be using either ADSL2, ADSL2+ or VDSL.
They have different reach and different bandwidth capacity.
- What will be used for backhauling the DSLAM to CO.
- Will it be internet-TV or IPTV?
Hi,
The Cisco introduced PfR can support OSPF as parent route on IOS
12.4(24)T and this term is PIRO(Protocol Independent Route
Optimization).
Detail link this:
http://www.cisco.com/en/US/docs/ios/oer/configuration/guide/oer-trf_rte_ctl.html#wp1060987
But when I use 12.4(24)T in Cisco 1812
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