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Cisco Bug: CSCvj09780 - [l3 routes] hal l3 routes entry stuck in rdel state

Last Modified

May 08, 2018

Products (1)

  • Cisco LAN Switch Software

Known Affected Releases

12.3(1e)

Description (partial)

Symptom:
After Link flapping, some specific external route is not reachable from ACI internal.
Elam capture on border leaf shows it is forward back spine.
If checking the l3 routes, next hope is point to another border leaf, and flag rdel means route in deletion
module-1# show platform internal hal l3 routes | grep 10.33.1.42
| 4609|                             10.33.1.42/ 32| UC| bbc9|     2c602| TRIE|  526| 5/  0| 6526|A|     8c04|    80ab| 1151| 1/  2|      521|  5|      0|   f|  3|   0| 0| 1|spi,dpi,rdel
module-1# show platform internal hal l3 nexthops | grep 80ab
    8c04 Y T F    0 18010022 18010022    0 1 1 0 0   ab  9 0 80ab 0 307026 0 0 0 1 0 1 0 0      0 00:0c:0c:0c:0c:0c    0 0    0 0 0 0 0 0 0 10.240.72.82   <<<< another border leaf's tep address


But the routing table is point to external router:

 10.33.1.42/32, ubest/mbest: 1/0
     *via 10.30.0.74, Eth1/47, [90/132096], 15:07:08, eigrp-default, internal

Conditions:
route flapping
version 2.3(1f)
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