HP Service Insertion Guide K/KA/WB.15.15

Troubleshooting helpPossible causeIssueID
If this counter is incrementing, it means there
is fragmented traffic inbound on one or more
tunnels.
Relevant MIB objects
hpicfServiceTunnelStatsRxFragmentDrops
(hpicfServiceTunnels MIB)
Look for the following message in the event
logs:
Loopback interface oversubscription
Decapsulated packets (from all
tunnels) hit the loopback port and are
Decapsulated packets not
forwarded out by the switch.
3
Packets dropped due to
oversubscription on tunnel
decapsulation interface.
re-inserted to the ASIC for a second
pass processing.
This port has a 1G capacity and
oversubscription on this port can
cause packets to be dropped.
Run the following CLI command to know if
there are drops due to SRC MAC lookup
failure.
Source MAC address not learned
All decapsulated packets that hit the
loopback port are re-inserted to the
ASIC for a second pass processing.
Decapsulated packets not
forwarded out by the switch.
4
HP-E8206zl# show interface
tunnel type intercept statistics
In this pass, the SRC MAC of the
decapsulated frame must have
Service Tunnel Statistics
Unknown Source MAC Packets
Dropped (Rx): 200
already been learned on the packet’s
inbound VLAN. If not, such traffic will
be dropped.
If this counter is incrementing, it means there
is traffic on the loopback interface that has
Note that if the VLAN in the
decapsulated packet is not
failed the ‘SRC MAC on the inbound VLAN’
lookup.
configured on the device, packets
will be dropped as well.
Other tunnel specific troubleshooting commands
CLI command or otherPurposeID
HP-E8206zl# show interface tunnel type intercept
statistics 1000000001
Tunnel interface TX/RX packet counters
(tunnel and heartbeat packets)
1
Aggregate Statistics
Fragmented Packets Dropped (Rx) : 0
Packets to Non-Existent Tunnel : 0
Unknown Source MAC Packets Dropped (Rx) : 0
MTU Violation Drop : 0
Per Tunnel Statistics
Interface Index : 100663874
Name :
ServiceTunnel-01
Rx Packets : 0
Tx Packets : 0
Rx 5 Minute Weighted Average Rate (Pkts/sec) : 0
Tx 5 Minute Weighted Average Rate (Pkts/sec) : 0
Rx Heartbeat : 0
Tx Heartbeat : 0
Last Recv Heartbeat Timestamp : 01/01/90 00:00:00
HP-E8206zl# HP-E8206zl# show interface tunnel type
intercept statistics 1000000001
Tunnel interface TX/RX packet rate2
Aggregate Statistics
Fragmented Packets Dropped (Rx) : 0
Packets to Non-Existent Tunnel : 0
Unknown Source MAC Packets Dropped (Rx) : 0
MTU Violation Drop : 0
Per Tunnel Statistics
Troubleshooting 23