[c-nsp] Draft Rosen (mvpn) interoperability - Cisco and Alcatel-Lucent 7750 SROS

[Vitkovský Adam]

Hi Arun,

According to the below snip from the RFC the option should be used only for PIM-DM is there a possibility that the ALU runs PIM-DM (or "sparse-dense" mode for that matter) over the Default MDT tunnel please? 

4.7.5.2. LAN Prune Delay Option


    0                   1                   2                   3
    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |            Type = 2           |           Length = 4          |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |T|       LAN Prune Delay       |       Override Interval       |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   The LAN_Prune_Delay option is used to tune the prune propagation
   delay on multi-access LANs.  The T bit is used by PIM-SM and SHOULD
   be set to 0 by PIM-DM routers and ignored upon receipt.  The LAN
   Delay and Override Interval fields are time intervals in units of
   milliseconds and are used to tune the value of the J/P Override
   Interval and its derived timer values.  Section 4.3.5 describes how
   these values affect the behavior of a router.  The LAN Prune Delay
   SHOULD be used by PIM-DM routers.

adam

> -----Original Message-----
> From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of
> Arun Kumar
> Sent: Friday, November 21, 2014 5:45 AM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] Draft Rosen (mvpn) interoperability - Cisco and Alcatel-
> Lucent 7750 SROS
> 
> Hi All,
> 
> I am evaluating Alcatel-Lucent 7750 SR-OS with Cisco IOS on Draft Rosen
> MVPN. PIM neighborship on VRF is not established. On doing debug, found
> "PIM(0): Ignored unknown option 2 in PIM Hello packet". On searching,
> found Cisco is not supporting 'lan prune delay' and hence could not establish
> PIM neighborship on VRF.
> 
> Is there any way where I can configure Cisco to talk to this LAN prune delay
> or in Alcatel-Lucent to disable it.
> 
> Please advise.
> 
> thanks
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