12-01-2016 12:39 AM - edited 03-08-2019 08:23 AM
Hi,
I have two Nexus 7010 are running vPC and HSRP.
Show ip arp on standby Nexus 7010 display some * (star sign).
Can someone tell me that "* - Adjacencies learnt on non-active FHRP router" mean?
The command output:
N7KA2# sh ip arp
Flags: * - Adjacencies learnt on non-active FHRP router
+ - Adjacencies synced via CFSoE
# - Adjacencies Throttled for Glean
D - Static Adjacencies attached to down interface
IP ARP Table for context default
Total number of entries: 993
Address Age MAC Address Interface
10.10.177.6 00:08:32 000c.290e.a243 Vlan177 *
10.10.177.10 00:00:18 INCOMPLETE Vlan177
10.10.177.11 00:00:23 INCOMPLETE Vlan177
10.10.177.18 00:00:28 INCOMPLETE Vlan177
10.10.177.31 00:14:26 0050.56bb.a55a Vlan177
10.10.177.32 00:07:03 0060.164a.a345 Vlan177
10.10.177.33 00:12:54 0060.164a.a1ef Vlan177
10.10.177.36 00:07:19 0050.56bb.a6a2 Vlan177 *
10.10.177.37 00:14:54 0050.56bb.a0ef Vlan177
10.10.177.38 00:11:39 0050.56bb.a697 Vlan177 *
10.10.177.39 00:03:10 000c.2998.a361 Vlan177
10.10.177.40 00:02:09 000c.29ab.afd5 Vlan177 *
10.10.177.41 00:04:23 000c.2966.a946 Vlan177
10.10.177.42 00:02:17 000c.295a.a92e Vlan177
10.10.177.43 00:11:56 000c.2927.a79d Vlan177 *
10.10.177.44 00:15:13 000c.290e.a5d2 Vlan177
..............................
N7KA2#
N7KA2#
N7KA2#
N7KA2# sh ip arp fhrp-non-active-learn
Flags: D - Static Adjacencies attached to down interface
IP ARP Table for context default
Address Age MAC Address Interface
10.10.177.6 00:08:42 000c.290e.a243 Vlan177
10.10.177.36 00:07:29 0050.56bb.a6a2 Vlan177
10.10.177.38 00:11:49 0050.56bb.a697 Vlan177
10.10.177.40 00:02:19 000c.29ab.afd5 Vlan177
10.10.177.43 00:12:06 000c.2927.a79d Vlan177
10.10.177.73 00:11:33 0025.b502.a06e Vlan177
10.10.177.74 00:11:22 0025.b502.a00f Vlan177
10.11.12.18 00:18:02 74d0.2b9a.a919 Vlan112
10.11.12.20 00:08:26 000c.295a.aa4b Vlan112
10.11.12.28 00:11:55 0021.f717.a040 Vlan112
10.11.12.31 00:00:58 9c8e.9988.a963 Vlan112
10.11.12.36 00:16:20 4487.fc9a.a31f Vlan112
10.11.12.38 00:00:10 4487.fcd9.a03d Vlan112
10.11.12.41 00:01:39 7427.eafe.abbe Vlan112
10.11.12.47 00:07:32 74d0.2b9b.a1c6 Vlan112
10.11.12.54 00:00:35 40a8.f049.ad47 Vlan112
...........................................
N7KA2# sh hsrp br
P indicates configured to preempt.
|
Interface Grp Prio P State Active addr Standby addr Group addr
Vlan2 2 100 P Standby 10.10.2.250 local 10.10.2.254 (conf)
Vlan3 3 100 P Standby 10.10.3.250 local 10.10.3.254 (conf)
Vlan9 9 100 P Standby 10.10.9.250 local 10.10.9.254 (conf)
Vlan10 21 100 P Standby 10.2.1.250 local 10.2.1.253 (conf)
Vlan11 11 100 P Standby 10.10.11.250 local 10.10.11.254 (conf)
Vlan23 23 100 P Standby 10.10.23.250 local 10.10.23.254 (conf)
Vlan27 27 100 P Standby 10.10.27.250 local 10.10.27.254 (conf)
Vlan35 35 100 P Standby 10.10.35.250 local 10.10.35.254 (conf)
Vlan54 54 100 P Standby 10.10.54.250 local 10.10.54.254 (conf)
Vlan55 55 100 P Standby 10.10.55.250 local 10.10.55.254 (conf)
Vlan56 56 100 P Standby 10.10.56.250 local 10.10.56.254 (conf)
Vlan80 80 100 P Standby 10.10.80.250 local 10.10.80.254 (conf)
Vlan101 101 100 P Standby 10.10.1.250 local 10.10.1.254 (conf)
Vlan112 112 100 P Standby 10.11.12.250 local 10.11.12.254 (conf)
Vlan123 123 100 P Standby 10.10.123.250 local 10.10.123.254 (conf)
Vlan177 177 100 P Standby 10.10.177.250 local 10.10.177.254 (conf)
12-21-2016 07:32 AM
I see the same thing on a pair Nexus 9332PQ's acting distribution switches (L3)
I don't recall ever seeing this
sho ip arp vlan 3566 vrf Corp-DMZ
Flags: * - Adjacencies learnt on non-active FHRP router
+ - Adjacencies synced via CFSoE
# - Adjacencies Throttled for Glean
D - Static Adjacencies attached to down interface
IP ARP Table
Total number of entries: 12
Address Age MAC Address Interface
10.33.66.1 00:17:44 0000.0c9f.f042 Vlan3566
10.33.66.2 00:17:44 881d.fcc9.bb19 Vlan3566
10.33.66.9 00:17:00 0050.5686.6741 Vlan3566 *
10.33.66.13 00:12:48 0050.5686.5638 Vlan3566 *
10.33.66.14 00:12:45 0050.5686.39d3 Vlan3566 *
10.33.66.15 00:06:47 0050.5686.767f Vlan3566 *
10.33.66.16 00:05:27 0050.5686.084a Vlan3566
10.33.66.25 00:12:45 d4ae.5287.fd0b Vlan3566 *
10.33.66.26 00:17:46 0025.90e6.2bc2 Vlan3566
10.33.66.32 00:16:15 0050.5686.63a9 Vlan3566
10.33.66.36 00:18:42 44a8.421a.d770 Vlan3566
10.33.66.60 00:17:44 0010.e08d.b5e4 Vlan3566
11-15-2017 05:04 AM
07-03-2018 08:24 PM
I am seeing same issue, * which i don't understand where its coming from.. also i have notice my host only pinging even IPs but not odd like 1.1.1.1, 1.1.1.3, 1.1.1.5 are not pinging but 1.1.1.2, 1.1.1.4, 1.1.1.6 are pinging..
I am seeing * on one of vPC switch and if i do clear ip arp x.x.x.x after that my host start pinging everything, all issue got resolved..
Total number of entries: 1 Address Age MAC Address Interface 74.xx.xx.166 00:17:53 3863.bb41.abc8 Vlan100 *
09-05-2019 10:12 AM
Did you ever run into this again or find any additional solutions? I'm having a similar problem as well.
04-07-2020 08:26 AM
I'm troubleshooting an individual IP that is unreachable in a subnet in which all others applied to this particular server are.
Haven't found anything statically assigned, or blocked for that IP, but that MAC address does report this *
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