Comments on: Nortel ERS 5520 PwR Switch (Part 2)

By: Michael McNamara

Michael McNamara — Sat, 16 Nov 2019 23:15:17 +0000

In reply to Ahmed. Unfortunately there is no such command in the ERS platform. Cheers!

By: Ahmed

Ahmed — Tue, 12 Nov 2019 09:13:29 +0000

what command show current loging such as “terminal monitor” in cisco world.

By: Dennis Perri

Dennis Perri — Sat, 06 Jul 2013 14:45:37 +0000

I have two stacks of nortel 5510 switches. Four switches in each stack. I have created a MLT of four ports on each stack using ports 1/48,2/48,3/48,4/48 on each stack. I have turned off Spanning tree. Am I missing anything, will this work corrrectly using 4 ports on 4 switches?

By: Wesley

Wesley — Mon, 26 Jul 2010 19:23:40 +0000

Hi, and thanks for response.It looks like this is the default behavior on Nortel ERS-5500 series switch. I’ve updated my switches to latest software and it is still the same issues.
Won’t be playing with this any more I guess this the way is designed to work on those switches.

However I got anothe question. I’m building remote office with VoIP over MPLS 2MB reserved bandwith for QoS applications. I’m going to use Nortel ERS-5520 as an edge switch in the remote office to configure phones and data. My question is what is your recomended router/switch to use to connect edge switch to MPLS network at the remote site. There will be about 50-60 voice and data connections at the other end. Any recomendations greatly appreciated.

Thanks
Wesley

By: Michael McNamara

Michael McNamara — Thu, 17 Jun 2010 04:34:49 +0000

In reply to Wesley.

Hi Wesley,

On a legacy Ethernet Switch 450/470 you could expect that the monitor port would continue to function as a usable switch port. Somewhere along the line, I’m not sure if it’s always been this way with the 5500 series switches or was introduced in some software release, the port will no longer function as a usable switch port while it’s configured as a monitor port. You’ll need 2 NICs in your sniffer (desktop/laptop/dolch) so you can connect one to the monitor port and another to a regular switch port if you want to have access to the network from the sniffer.

Cheers!

By: Wesley

Wesley — Wed, 16 Jun 2010 20:11:14 +0000

Michael,
When I set
#port-mirroring mode XrxOrXtx monitor-port 12 mirror-port-X 38
My device with sniffer on port 12 would drop from the network
until I disable port mirroring.
I’m using Nortel ERS-5520 switch
Any thoughts on this?
Why would my device with sniffer drop from the network?

By: Michael McNamara

Michael McNamara — Thu, 02 Apr 2009 23:15:42 +0000

Hi Sofiane,

Looking at the command you provided above you are mirroring traffic from port 12 to port 1 so you’ll need to place your sniffer on port 1.

I would be really surprised if this didn’t work.

Cheers!

By: HAMMICHE

HAMMICHE — Thu, 02 Apr 2009 15:15:11 +0000

Hi Michael,

Thank you for your response.

Ihe version of software is:
FW: 4500_5203_diag.bin
SW: 4500_520009s.img

Requires that the sniffer is connected to the 1 or 12?

Best regards

Sofiane hammiche

By: Michael McNamara

Michael McNamara — Thu, 02 Apr 2009 00:05:24 +0000

Hi Hammiche,

I believe you have the proper syntax. Your sniffer is connected to port 1 correct?

What version of software is the switch running?

If I can find the time I’ll test it on a 4548GT-PWR that I have in our testlab.

Cheers!

By: HAMMICHE

HAMMICHE — Wed, 01 Apr 2009 16:32:46 +0000

Hi ,

I have configured the port-mirroring in the ETHERNET ROUTING SWITCH 4548GT WITH 48 1. You can see in the configuration :
#port-mirroring mode XrxOrXtx monitor-port 1 mirror-port-X 12
###############################################
#show port-mirroring
Monitoring Mode: XrxOrXtx ( Port X )
Monitor Unit/Port: 1
Unit/Port X: 12

when i tray to snif the packets, Ihe traffic in one direction.
can you help me .
best regards