09-12-2018 03:51 AM
Hello,
I have something strange in the mac table on the switch SF350-24P
It should look like this:
#show mac address-table vlan 410 Flags: I - Internal usage VLAN Aging time is 300 sec Vlan Mac Address Port Type ------------ --------------------- ---------- ---------- 410 00:30:4f:55:20:40 gi3 dynamic 410 00:9a:d2:c6:51:34 gi3 dynamic 410 00:9a:d2:c6:52:66 fa11 dynamic 410 84:16:f9:18:08:54 gi3 dynamic
But every few minutes I have this:
Vlan Mac Address Port Type ------------ --------------------- ---------- ---------- 410 00:30:4f:55:20:40 gi3 dynamic 410 00:9a:d2:c6:51:34 gi3 dynamic 410 00:9a:d2:c6:52:66 gi3 dynamic 410 84:16:f9:18:08:54 gi3 dynamic
And the host with the mac address 00:9a:d2:c6:52:66 that is directly connected to the switch (fa11) becomes unavailable.
On the KC01 (SG300-28SFP) switch, the mac array always looks good.
Port configuration on SW01
! interface GigabitEthernet3 gvrp enable spanning-tree link-type point-to-point switchport mode general switchport general allowed vlan add 100,410 tagged switchport general pvid 4095 macro description switch !next command is internal. macro auto smartport dynamic_type switch !
Port configuration on KC01
interface gigabitethernet1 gvrp enable switchport mode general switchport general allowed vlan add 100,410 tagged switchport general acceptable-frame-type tagged-only switchport general pvid 4095
Versions:
SW01 (SF350-24P)
Active-image: flash://system/images/image_tesla_hybrid_2.4.0.94.bin Version: 2.4.0.94 MD5 Digest: 6f5be217100f34929986f2e93dd2d5e9 Date: 31-May-2018 Time: 02:39:58 Inactive-image: flash://system/images/image1.bin Version: 2.3.5.63 MD5 Digest: 5881484e04bcdcc17c32872445e3ab8d Date: 20-Aug-2017 Time: 19:04:55
KC01 (SG300-28SFP)
SW version 1.4.9.4 ( date 04-Jun-2018 time 00:07:58 ) Boot version 1.3.5.06 ( date 21-Jul-2013 time 15:12:10 ) HW version V03
Any ideas what is wrong or what I configured wrong?
Solved! Go to Solution.
09-12-2018 03:57 AM - edited 09-12-2018 03:58 AM
Hi there,
Possibly you could have a loop on KC01. A broadcast from 52:66 is being received on Gi2, then looped on KC01 and sent back out Gi2 towards SW01.
SW01 sees these frames and updates its MAC address table with Gi3 as the source.
cheers,
Seb.
09-12-2018 03:57 AM - edited 09-12-2018 03:58 AM
Hi there,
Possibly you could have a loop on KC01. A broadcast from 52:66 is being received on Gi2, then looped on KC01 and sent back out Gi2 towards SW01.
SW01 sees these frames and updates its MAC address table with Gi3 as the source.
cheers,
Seb.
09-12-2018 05:15 AM
You were right. The problem was LAG between SG300 and old SRW248-G4 (one link does not work) I deleted LAG and it's OK.
I still have a problem with GVRP on SF350, but this is what I will describe in the new thread.
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