[c-nsp] GSR not switching multicast

[Daniska Tomas]

Hi all,

maybe it's just too late and I'm blind but can't leave home until I finish this, does anyone have a hint please?


IOS (tm) GS Software (C12KPRP-K4P-M), Version 12.0(32)SY4, RELEASE SOFTWARE (fc1)

PIM in SSM, everything is signalled fine. G2/0/5 is receiving multicast streams, and should send to G2/0/1.624.

e.g.,
(1.1.1.1, 239.232.1.6), 00:03:55/00:03:03, flags: sT
  Incoming interface: GigabitEthernet2/0/5, RPF nbr 172.27.150.2
  Outgoing interface list:
    GigabitEthernet2/0/1.624, Forward/Sparse, 00:03:55/00:03:03


DC-BB-PP-01#sh ip mroute count
IP Multicast Statistics
17 routes using 9442 bytes of memory
9 groups, 0.88 average sources per group
Forwarding Counts: Pkt Count/Pkts per second/Avg Pkt Size/Kilobits per second
Other counts: Total/RPF failed/Other drops(OIF-null, rate-limit etc)

Group: 239.232.1.6, Source count: 1, Group pkt count: 0
  Source: 1.1.1.1/32, Forwarding: 0/0/0/0, Other: 0/0/

(yes, 1.1.1.1 points to g2/0/5 via ospf)


input interface is nothing fancy, a SIP601 + GE SPA

NAME: "slot 2", DESCR: "ISE 10G Modular Services Card v2"
PID: 12000-SIP-601     , VID: V08, SN: SAL1419HET4

NAME: "SPA subslot 2/0", DESCR: "10-port Gigabit Ethernet Shared Port Adapter"
PID: SPA-10X1GE-V2     , VID: V02, SN: JAE1416065R

!
interface GigabitEthernet2/0/5
 mtu 9180
 ip address <blah>
 ip access-group blabla in
 no ip directed-broadcast
 ip pim sparse-mode
 ip ospf authentication message-digest
 ip ospf message-digest-key 1 md5 <blah>
 ip ospf network point-to-point
 ip ospf cost 100
 ip ospf hello-interval 1
 ip ospf dead-interval 5
 ip ospf bfd
 ip ospf 65432 area 0
 load-interval 30
 negotiation auto
 mpls label protocol ldp
 tag-switching ip
 bfd interval 50 min_rx 50 multiplier 5
end



sh int says

  30 second input rate 3053000 bits/sec, 3834 packets/sec
  30 second output rate 14000 bits/sec, 24 packets/sec
     1417564 packets input, 141107670 bytes, 0 no buffer
     Received 2 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 3336 multicast, 0 pause input

input rate is somewhat less than expected (4kpps), though 3336 multicasts seen is pretty much low


sh int switching says
           IP    Process       3727     314718        605      79280
            Cache misses          0
                    Fast          0          0          0          0
               Auton/SSE    1338130  133252545       7420     506046

the input acl is just a desperate attempt to see what's coming in

DC-BB-PP-01#sh ip access-lists blabla
Extended IP access list blabla
    permit ip host 1.1.1.1 host 239.232.1.1
    permit ip host 1.1.1.1 host 239.232.1.2
    permit ip host 1.1.1.1 host 239.232.1.3
    permit ip host 1.1.1.1 host 239.232.1.4
    permit ip host 1.1.1.1 host 239.232.1.5
    permit ip host 1.1.1.1 host 239.232.1.6
    permit ip host 1.1.1.1 host 239.232.1.7
    permit ip host 1.1.1.1 host 239.232.1.0
    permit ip any any (4443 matches)
DC-BB-PP-01#

i have tried everything from disabling/enabling mcast, reloading the linecard, reloading the box to reprogram the hw in case there's some bug... nothing helps.

local SE sees nothing wrong with that.



am i just dumb? :)


thanks for any hints

--

Tomas Daniska
Senior CSE/BDM

Soitron, a.s.
Plynarenska 5, 829 75 Bratislava, Slovakia
tel: +421 2 58224000, fax: +421 2 58224520

Good judgment comes from experience. Unfortunately, the experience usually comes from poor judgment.
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