[c-nsp] 7609 EoMPLS questions

[Matt Ryan]

Okay, apologies for having to work around the brain dead Outlook quoting (I
should have sent this from my private email instead but wasn't thinking when
I started the thread). Oh yeah, I apologise for the reams of auto-added
legal crap at the end as well.

Ian Cox wrote:
>Are you wanting the use the GE-WAN interface as the customer facing 
>interface, and perform queuing etc on the traffic going out or in a 
>sun-interface?

We want to use the GE-WAN interface as customer facing and ideally we would
have the QOS type features in both directions as these circuits will not
necessarily have a managed device on the end so we would need to police etc
on inbound as well as queue outbound.


Matt.

-----Original Message-----
From: Ian Cox [mailto:icox at cisco.com]
Sent: 26 July 2005 16:19
To: Matt Ryan; cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] 7609 EoMPLS questions


At 05:30 PM 7/25/2005 +0100, Matt Ryan wrote:
>We have a (number of) 7609s in our network that we want to terminate
>ethernet pseudo-wire services on. They have WS-SUP720-3BXL in them with
>WS-X6704-10GE uplinks into our MPLS core network. We have downstream metro
>ethernet aggregation switches that require an optical connection to the
>7609. The majority of our boxes only have optical interfaces on an OSM
>(OSM-2+4GE-WAN+) it looks like this complicates matters as it doesn't
>support the SUP-720 performing the EoMPLS function (ie/ there is no
xconnect
>command - at least not in 12.2(17d)SXB6 anyway). Looks like configuring a
>SVI with the xconnect it works but only if the OSM is the uplink (not the
>10GE).

True today, may change in a future software release.

>It also appears Cisco recommend not using the OSM style EoMPLS
>configuration along side the layer 3 style configuration (we have other
>pseudo-wires configured on LAN ports using the layer 3 style
configuration).

This recommendation is made because if you have other than 
PXF/FlexWAN interfaces as the uplink then the EoMPLS circuit on the 
SVI. It saves beating your head against a wall wondering why the 
circuit will not come up.

>While I guess I could use the 2 LAN ports on the card and have the SUP-720
>perform the encapsulation/decapsulation it would have been nice to get all
>the fancy queuing on the OSM as well.
>
>Is the above correct or have I missed something?

Are you wanting the use the GE-WAN interface as the customer facing 
interface, and perform queuing etc on the traffic going out or in a 
sun-interface?


Ian



>Matt.

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