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Beginner

Pseudowire Headend (PWHE) - Configuration

refer to following url for the configuration sample.

http://www.cisco.com/en/US/docs/routers/crs/software/crs_r4.3/lxvpn/configuration/guide/vc43vpls.html#wp1323265

I would like to understand what is the purpose or explanation of the use of the generic-interface-list

It is a must to define generic-interface-list on interface pw-ether ?

 

generic-interface-list il1

  interface gig0/1/0/0

  interface gig0/2/0/0

generic-interface-list il2

  interface gig0/1/0/1

  interface gig0/2/0/1

interface pw-ether1

  ipv4 address 10.1.1.2/24

  attach generic-interface-list il1

interface pw-ether2

  ipv4 address 10.1.2.2/24

  attach generic-interface-list il2

l2vpn

  xconnect group pwhe

   p2p pwhe1

    interface pw-ether1

    neighbor 100.100.100.100 pw-id 1

   p2p pwhe2

    interface pw-ether2

   neighbor 100.100.100.100 pw-id 2

2 REPLIES 2
Beginner

Pseudowire Headend (PWHE) - Configuration

Hello, How you doing

As far as i know thegeneric-interface-list are used by the router as a reference when it needs to use some resources like for example queues (remember taht pw-ether interfaces support QoS ). And yes if you want to enable a xconnect you need this generic-interface-list attached to the pw-ether

For example if you have a generic-interface-list that doesn´t have any interface defined

RP/0/RSP0/CPU0:PE5-BNG-ASR9K#show run generic-interface-list

Thu Nov 28 16:26:41.372 UTC

generic-interface-list il1

!

then you attach it to the pw-ether

RP/0/RSP0/CPU0:PE5-BNG-ASR9K#show run interface pw-eth66

Thu Nov 28 16:26:50.108 UTC

interface PW-Ether66

mtu 1574

vrf PRIV5

ipv4 address 66.0.0.1 255.255.255.252

attach generic-interface-list il1

!

then configure a xconnect

!

xconnect group group3

p2p P2P3

interface PW-Ether66

neighbor ipv4 3.3.3.30 pw-id 321

pw-class pwclass1

!

RP/0/RSP0/CPU0:PE5-BNG-ASR9K#show l2vpn xconnect

Thu Nov 28 16:28:05.765 UTC

Legend: ST = State, UP = Up, DN = Down, AD = Admin Down, UR = Unresolved,

SB = Standby, SR = Standby Ready, (PP) = Partially Programmed

XConnect                   Segment 1                       Segment 2

Group      Name       ST   Description            ST       Description            ST

------------------------   -----------------------------   -----------------------------

group1     P2P1       UP   BE1.200                UP       1.1.1.1         3210   UP

----------------------------------------------------------------------------------------

group3     P2P3       UR   PE66                   DN       3.3.3.30        321    UR // this neighbor doesn´t come up because the generic-interface-list doesn´t have any interface

----------------------------------------------------------------------------------------

but if you add any new interface to the generic-interface

RP/0/RSP0/CPU0:PE5-BNG-ASR9K(config)#generic-interface-list il1

RP/0/RSP0/CPU0:PE5-BNG-ASR9K(config-gen-if-list)#interface bundle-eth1

RP/0/RSP0/CPU0:PE5-BNG-ASR9K(config-gen-if-list)#

RP/0/RSP0/CPU0:PE5-BNG-ASR9K(config-gen-if-list)#commit

you can see this

RP/0/RSP0/CPU0:PE5-BNG-ASR9K#show l2vpn xconnect

Thu Nov 28 16:28:29.922 UTC

Legend: ST = State, UP = Up, DN = Down, AD = Admin Down, UR = Unresolved,

SB = Standby, SR = Standby Ready, (PP) = Partially Programmed

XConnect                   Segment 1                       Segment 2

Group      Name       ST   Description            ST       Description            ST

------------------------   -----------------------------   -----------------------------

group1     P2P1       UP   BE1.200                UP       1.1.1.1         3210   UP

----------------------------------------------------------------------------------------

group3     P2P3       UP   PE66                   UP       3.3.3.30        321    UP  // voila, now is up

----------------------------------------------------------------------------------------

Good luck

Re: Pseudowire Headend (PWHE) - Configuration

Hi, 

I have two queries. 

 

1. Can we match tagged frames on PW-Ether interface like we do in regular L3 interface.

2. Can we attach multiple PW-Ether interfaces to the same xconnect group. 

 

 

Thanks 

Sanjeewa D. 

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