Limit Bandwidth for Nortel 2526T on Ports

[yannsopheak]

I have been using many network switched from different vendors such as 3Com, HP, Nortel/Avaya, and Cisco for almost four years since I came to work for CAMKO Broadband.

Currently, I have problem controlling speed for users because on my billing cannot control this problem. Hence, I want to use command-line to limit speed on the port for Nortel 2526T instead of using QoS on the billing server.

On my Nortel 2526T switch, I tried the following command:

2526T>enable
2526#conf t
2526(config)#interface fastEthernet 1
2526T(config-if)#rate-limit both 10

But the result was not effect

*** I AM USING FIRMWARE 4.2.1 VERSION ***

Anyone can, please help me too.

[Dominik]

Hi yannsopheak and welcome to the forum,

2526T(config-if)#rate-limit both 10

This command will limit multicast and broadcast to 10%

If I understand you correct you wish to limit the port speed. You can achieve that with two methods.
Limit the autonegotiation advertisments:
auto-negotiation-advertisements port x/x 10-full 10-half 100-full 100-half pause-frame
With the paramaters you can decide wich port speeds your switch will offer in the autoneg process.

Or you set the port to a specified speed:
speed port x/x 100
duplex port x/x full
You have to configure the connected devices to that port with the same speed/duplex settings.

Good Luck

[yannsopheak]

Thank you a lot for your telling me.

But these commands just limit speed 10, 100, or 1000 Mbps by given from the manufacturer. However, my real problem is to limit speed as what i need such as 512 Kbps  or greater than this such 1024Mbps or 2048Mbps on the port.

Can you tell me how to do that on my Nortel 2526T Switch?

Thank you again for you help, I am urgent waiting for you response again.

[Michael McNamara]

You won't be able to-do that on the ERS 2500 series switch.

You'll most likely want to look at either some type of traffic shaper or firewall. Packeteer, now Blue Coat Packet Shaper, comes to mind.

Good Luck!

[Bax]

Is it possible to achive this on a ERS 4500?

I've been looking at QoS interface shaping but i'm not sure if this is the best method?

Is there an Avaya equivilent to Cisco's "srr-queue" command?

Thanks