Multicast Dataplane Verification - ASR9K

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Contents

Count individual packets

See Hardware Packet Counting - ASR9K

Is Traffic Passing?

Rate

RP/0/RSP0/CPU0:9000-L# show mfib route rate 10.0.0.1 239.0.0.1

IP Multicast Forwarding Rates
(Source Address, Group Address)
  Incoming rate: pps (Incoming node)
  Outgoing rate:
    Node: (Outgoing node) : pps

(10.0.0.1,239.0.0.1)
  Incoming rate : 2221 pps (0/3/CPU0)
  Outgoing rate : 
    Node : 0/3/CPU0 : 0 pps

Hardware Count

RP/0/RP0/CPU0:9006-B# show mfib ipv4 hardware route statistics 239.0.0.1 10.0.0.1 location 0/0/CPU0
LC Type: Typhoon A9K-24x10GE-TR
--------------------------------------------------------------------------
Legend:
    N:    NP ID                    R:    Received
    F:    Forwarded                P:    Punted to CPU
    ID:   Ingress Drop             ED:   Egress Drop

Source: 10.0.0.1  Group: 239.0.0.1  Mask:64
  -------------------------------------------------------------------------
  NP    R(packets:bytes)/F(packets:bytes)/P(packets)/ID(packets)/ED(packets)
  -------------------------------------------------------------------------
  0     3023077:285713334 / 2798951:261882813 / 0 / 18 / 0
  1     52963:5576963 / 2726610:251983189 / 0 / 0 / 0
  2     0:0 / 0:0 / 0 / 0 / 0
  3     0:0 / 52919:4601984 / 0 / 0 / 0
  4     0:0 / 0:0 / 0 / 0 / 0
  5     0:0 / 0:0 / 0 / 0 / 0
  6     0:0 / 0:0 / 0 / 0 / 0
  7     0:0 / 0:0 / 0 / 0 / 0
  -------------------------------------------------------------------------
  Interface Statistics:
  -------------------------------------------------------------------------
  C   Interface       F/P/D (packets:bytes)
  -------------------------------------------------------------------------
  0   Te0/0/0/2       53360:5611582 / 0:0 / 0:0
  0   BE2031          50105:5338173 / 0:0 / 0:0
  1   Te0/0/0/3       1495932:131571330 / 0:0 / 0:0
  -------------------------------------------------------------------------

Linecard Programming

RP/0/RSP0/CPU0:9000# show mfib route 10.0.0.1 239.192.11.7 location 0/0/CPU0

IP Multicast Forwarding Information Base
Entry flags: C - Directly-Connected Check, S - Signal, D - Drop,
  IA - Inherit Accept, IF - Inherit From, EID - Encap ID,
  ME - MDT Encap, MD - MDT Decap, MT - MDT Threshold Crossed,
  MH - MDT interface handle, CD - Conditional Decap,
  DT - MDT Decap True, EX - Extranet, RPFID - RPF ID Set,
  MoFE - MoFRR Enabled, MoFS - MoFRR State, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
  NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
  EG - Egress, EI - Encapsulation Interface, MI - MDT Interface,
  EX - Extranet, A2 - Secondary Accept
Forwarding/Replication Counts: Packets in/Packets out/Bytes out
Failure Counts: RPF / TTL / Empty Olist / Encap RL / Other

<snip>

(10.0.0.1,239.0.0.1),  Flags:  
  Up: 00:00:15
  Last Used: never
  SW Forwarding Counts: 0/0/0
  SW Replication Counts: 0/0/0
  SW Failure Counts: 0/0/0/0/0
  Bundle-Ether42 Flags:  NS EG, Up:00:00:15  < -- is EG present?
  Bundle-Ether43 Flags:  A, Up:00:00:09

Common Problems

TTL Expiry

RP/0/RSP0/CPU0:9001-A# show mfib route 10.0.0.1 239.0.0.1 detail location 0/3/CPU0 

IP Multicast Forwarding Information Base
Entry flags: C - Directly-Connected Check, S - Signal, D - Drop,
  IA - Inherit Accept, IF - Inherit From, EID - Encap ID,
  ME - MDT Encap, MD - MDT Decap, MT - MDT Threshold Crossed,
  MH - MDT interface handle, CD - Conditional Decap,
  DT - MDT Decap True, EX - Extranet, RPFID - RPF ID Set,
  MoFE - MoFRR Enabled, MoFS - MoFRR State
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
  NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
  EG - Egress, EI - Encapsulation Interface, MI - MDT Interface,
  EX - Extranet, A2 - Secondary Accept
Forwarding/Replication Counts: Packets in/Packets out/Bytes out
Failure Counts: RPF / TTL / Empty Olist / Encap RL / Other

(10.0.0.1,239.0.0.1),   Flags:  

  Up: 01:07:41
  Last Used: 00:00:00
  SW Forwarding Counts: 4065004/0/0
  SW Replication Counts: 4065004/0/0
  SW Failure Counts: 0/4065004/0/0/0
  Route ver: 0x1897
  MVPN Info :- 
    MDT Handle: 0x0, MDT Probe:N [N], Rate:Y, Acc:Y
    MDT SW Ingress Encap V4/V6, Egress decap: 0 / 0, 0
    EG count: 1
    Encap ID: 0, RPF ID: 0
    Local Receiver: True, Turnaround: False
    In AMT List: False
  TenGigE0/3/0/2 Flags:  A, Up:01:07:41 (stale, mt, )
  Bundle-Ether11.1621 Flags:  NS EG, Up:01:07:41 (stale, mt, )

References

Cisco IOS-XR Troubleshooting Guide for the Cisco ASR-9000 Aggregation Services Router - Troubleshooting Multicast Services

Cisco Live! BRKARC - 2017 Packet Journey Inside ASR 9000 - Pg. 85

Rating: 5.0/5 (1 vote cast)

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