RE: Layer 3 switching

[Steve and Monica Brokaw]

Title: Layer 3 switching

OK, no argument from me.  It's still Multi-layer switching, not layer 3 switching.

 

Steve

-----Original Message-----
From: Abruzzese, John [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, September 27, 2000 1:56 PM
To: Steve and Monica Brokaw
Cc: Cisco Group Study (E-mail)
Subject: RE: Layer 3 switching

In the 6000 family the MSFC acts as the MLS-RP, the equivalent of an RSM or Layer 3 router, and the Policy Feature Card(PFC) acts as the MLS-SE, which basically is the equivalent of the Net Flow Feature Card(NFFC) in the Cat 5000 family.

-----Original Message-----
From: Steve and Monica Brokaw [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, September 27, 2000 2:48 PM
To: Abruzzese, John; [EMAIL PROTECTED]
Subject: RE: Layer 3 switching

OK, maybe this is a question of semantics, maybe I'll get flamed, but here goes anyway.  The 6000 series does Multilayer switching, which is quite different in its functionality than layer 3 switching.  Multilayer switching must still have a layer 3 router available to making the initial routing decision for a flow.  True layer 3 switching uses ASICS to perform the routing functionality.

 

 

Steve Brokaw, MCSE CCNA CCNP

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Abruzzese, John
Sent: Wednesday, September 27, 2000 12:37 PM
To: Cisco Group Study (E-mail)
Subject: FW: Layer 3 switching

 

-----Original Message-----
From: Abruzzese, John
Sent: Wednesday, September 27, 2000 1:36 PM
To: Iohan Reyes
Subject: RE: Layer 3 switching

The Catalyst 6000 switch family will do layer 3 switching with the Multi-Layer Switching Card(MSFC) and the Policy Feature Card(PFC). You can do both Layer 2 & 3 switching in addition to access lists.

-----Original Message-----
From: Iohan Reyes [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, September 27, 2000 12:45 PM
To: Fowler, Joey; [EMAIL PROTECTED]
Subject: RE: Layer 3 switching

I believe the 6000 series can be outfitted with a module to make it a layer-3 switch...

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Fowler, Joey
Sent: Wednesday, September 27, 2000 11:19 AM
To: [EMAIL PROTECTED]
Subject: Layer 3 switching

I know there has been much discussion on this in the past, but I want to make sure that I understand it.  Layer 3 switching is the equivalent of routing, but is usually referred to as Layer 3 switching because it's designed for high speed LAN traffic.

Assuming the above is correct what are some examples of a regular routers vs. layer 3 switch? I'm guessing the 2500 series routers would be regular but what would be a good example of a layer 3 switch?

Thanks,
Joey Fowler
Senior Network Engineer
Foodtrader.com