Thanks

I believe they only support port based mirror ports.

Cheers!

Hey Mich ,

I found some where that (ERSPAN) encapsulated Remote SPAN as the name says, brings generic routing encapsulation (GRE) for all captured traffic and allows it to be extended across Layer 3 domains.

Thanks a ton Michael . One more question does ERS 5000 switches support , port mirroring based on vlan ?

Thanks in advance

You are doing a great job . I have a question .

Is vlan-based port mirroring supported in ERS switches

I believe ERSPAN is supported on the latest software release for the ERS 5000, I’m not sure about the 4000 but it’s probably supported on the 4800. I would suggest you check the release notes to find the answer. I believe both Avaya (formerly Nortel) and Cisco support remote span/mirror ports by encapsulating the traffic in a proprietary L2 frame so unless you are bridging on that Cisco router I don’t believe it will traverse routed links.

Good Luck!

Is ERSPAN supported in ERS 4000 and ERS 5000 switches . I have two ERS 5000 connected to a cisco router . Can i span traffic on ERS 5000 on one end to ERS 5000 on the other end when cisco router is in between ?

Regarding your post where you said that the middle switch between two others switches on which port mirroring is enabled, What if the middel switch is also connected to other devices? Can the middle switch pass his own data as well as the data coming from the source switch to the destination switch on which is going to be monitored? Do i need to configure 2 port mirroring sessions on the destination switch? one for the middle switch and one for the source switch?

Thanks in advanced!

Hi Ivannick,

It’s my understanding that all (valid) Ethernet frames should be mirrored regardless if they are an IP frame or an IPX/SPX frame or anything else.

Avaya has a technical configuration guide available here;
http://support.avaya.com/css/P8/documents/100123967

Good Luck!

Thanks for your response. It is clear that i need switches that support remote mirroring. I have another question if u dont mind. I red that local mirror captures ip packets and data packets. But remote mirroring only captures data packets. Is this true? what if i want to capture ip packets wth remote mirroring? can i enable both a local mirror port as a remote mirror port on the same switch? or do i have to connect another switch to the switch iam monitoring on? can u please advise me?

Thanks,

Ivannick

Hi Ivannick,

You need switches at both ends that support Remote Port Mirroring, the switches in the middle just forward the encapsulated frames between the two endpoints. In the past I’ve setup a remote port mirror from one ERS 8600 to another ERS 8600 with a third ERS 8600 in the middle that didn’t have any configuration other than bridging the VLAN between the two switches. You need switches that support Remote Port Mirroring so they can encapsulate the Ethernet frame and then de-encapsulate the Ethernet frame at the far end before it hits your sniffer or whatever device you are mirroring the packets to.

Good Luck!

I have a questiom concerning remote port mirroring.

The following situation:

Core switch 1 ————> access switch 2 ————> access switch 3

if i send traffic from access switch 2 to access switch 3 is it possible to capture that traffic on core switch 1 with remote port mirroring? or do i have to set an extra core switch at access switch 2?
So is it generally possible to redirect outbound traffic from switch 2 to switch 1 if this traffic is destined for switch 3

Thanks in advanced!
Ivannick

I could find no mention of remote port mirroring in any ERS 8300 documentation.

I don’t believe the ERS 8300 supports Remote Port Mirroring as the ERS 8600 does although I could be wrong. If you don’t have the hardware in front of you I would suggest you review the documentation for the ERS 8300.

Good Luck!

Hi Anish,

Have you tried the commands above on an ERS 8300?

Good Luck!

Thanks for the reply. I actually decided to make my response a separate post. You can find that post here; http://blog.michaelfmcnamara.com/2008/07/port-mirroring-with-ers-8600/.

The only issue that continually causes me grief are the legacy non-E cards since they don’t support egress port mirroring. Unfortunately we were fairly early adopters of the ERS 8600 product and we’ve got quite a few non-E cards in our environment.

Cheers!