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Brocade VDX 6730-60-F MTU on the port-channel members

Brocade VDX 6730-60-F MTU on the port-channel members

New Contributor

I am having interesting problem with Brocade VDX 6730-60-F

I have a port channel configure with MTU 9214

I noticed that individual ports from that channel seems to have MTU 2500 and I am not able to change that, and as a result i am not able to send packets across without them fragmenting.

Am I missing something obvious?

PS: If i try to join port with mtu set to existing or new channel I get error that MTU first hast to be reset.

interface Port-channel 10 vlag ignore-split mtu 9216 description 10 switchport switchport mode trunk switchport trunk allowed vlan all no switchport trunk tag native-vlan switchport trunk native-vlan 2 no shutdown interface TenGigabitEthernet 12/0/56 description sw-a2-42 qumulo ports 8/1-4 no fabric isl enable no fabric trunk enable channel-group 10 mode active type standard lacp timeout long no shutdown Port-channel 10 is up, line protocol is up Hardware is AGGREGATE, address is 0005.33f2.9e04 Current address is 0005.33f2.9e04 Interface index (ifindex) is 671088650 Minimum number of links to bring Port-channel up is 1 MTU 9214 bytes show interface tengigabitethernet 12/0/51 TenGigabitEthernet 12/0/51 is up, line protocol is up (connected) Hardware is Ethernet, address is 0005.33f2.9df6 Current address is 0005.33f2.9df6 Pluggable media present Interface index (ifindex) is 51945604352 MTU 2500 bytes

Extreme Employee
If this is still an issue for you I would suggest opening a ticket with the Extreme GTAC -
Doug Hyde
Director, Technical Support / Extreme Networks