25-19
Cisco Nexus 1000V Troubleshooting Guide, Release 5.2(1)SV3(1.1)
OL-31593-01
Chapter 25 VXLANs
VXLAN Data Path Debugging
echo “debug sfportagent all” > /tmp/dpafifo
To debug hitless reconnect (HR) for capability l2-lisp, use the following command:
echo “debug sfportl2lisp_cache all” > /tmp/dpafifo
To debug CBL programming.
echo “debug sfpixmagent all” > /tmp/dpafifo
To debug a VXLAN agent that interacts with the VSM, use the following command:
echo "debug sfvxlanagent all" > /tmp/dpafifo
To check the VTEP and MAC addresses, use the following command:
Jul 1 10:18:20.852679: num_update_timer_interval 3232890
Jul 1 10:18:20.852716: total_report_vsm_count 0
Jul 1 10:18:20.852739: num_act_VTEP_xfaces 1
Jul 1 10:18:20.853108: DPA READY = TRUE
Jul 1 10:18:20.853223: num_swbds 0
Jul 1 10:18:20.853244: missing_swbds 0
Jul 1 10:18:20.853344: get_VTEP_txnid 3
Jul 1 10:18:20.853372: get_mac_txnid 5
Jul 1 10:18:20.853475: vxlan_retry_intvl 600
Jul 1 10:18:20.853602: get_mac_sent = TRUE
Jul 1 10:18:20.853622: get_VTEP_sent = TRUE
Jul 1 10:18:20.853733: VTEP_mismatch_syslog_sent = FALSE
Jul 1 10:18:20.853843: mac_mismatch_syslog_sent = FALSE
Jul 1 10:18:20.853863: delete_notif_rx(Pending MAC deletes) = FALSE
Jul 1 10:18:20.853876: update timer ticks that pending deletes not sent 0
Jul 1 10:18:20.853890: VxLAN update timer state: 1
Jul 1 10:18:20.853906: VSM connected: FALSE
Jul 1 10:18:20.854021: Last retry slot 0 MAC 00:00:00:00:00:00
Jul 1 10:18:20.854132: Last delete slot 0 MAC 00:00:00:00:00:00
Hash SWBD VTEP-Ver MAC-Ver Created on DP Need version check
0 4096 23 0 1 0
1 4097 23 24 1 0
2 4098 0 0 0 0
Note: You can compare the MAC version output on the VSM using the show bridge-domain mac
command and VTEP version output on the VSM using the show bridge-domain VTEP command.
To check the MAC addresses to be distributed on the VSM, use the following command:
Flags: R - Report to VSM I - VSM Informed
Add: MAC to be distributed
Delete: MAC to be un-distributed
Stale - Stale entry in VSM
No VTEP - NO VTEP. Entry to be removed from VSM
Wait - Wait for Attach from VSM
BD MAC Address if-index Id VTEP Flags VM IP-cnt Retry
4097 00:50:56:97:15:dc 0x1c000480 3218000 172.172.0.134 I(Add) 0 1
4097 00:50:56:97:06:89 0x1c0004b0 3218000 172.172.0.134 I(Add) 0 1
Vempkt
Vempkt has been enhanced to display the VLAN/SegmentID. Use vempkt to trace the packet path
through the VEM.
• Encapsulated: Capture ingress on Seg-VEth LTL – Egress on uplink
• Decapsulated: Capture ingress on uplink – Egress on Seg-VEth LTL
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