topic Re: Troubles with vlan 1 between extreme and cisco in ExtremeSwitching (EXOS/Switch Engine)

Troubles with vlan 1 between extreme and cisco

popeye — Wed, 31 Mar 2021 16:30:25 GMT

Hello everyone.
I on my Cisco Nexus 3064 and Extreme x650-24x configured 6 * 10G ports etherchannel. Then I built trunk on cisco and added tagged vlans on extreme. Everything is ok despite of vlan 1. I can't get traffic in vlan 1 although there are mac addresses in this vlan.
Who has any ideas?
Thank you.

Cisco config:

cisco# sh running-config interface port-channel 50
interface port-channel50
  speed auto
  priority-flow-control mode off
  lacp graceful-convergence
  no lacp suspend-individual
  lacp min-links 1
  lacp max-bundle 32
  no port-channel port load-defer
  lacp fast-select-hot-standby
  no switchport block unicast
  no switchport block multicast
  no hardware multicast hw-hash
  no hardware vethernet mac filtering per-vlan
  switchport
  switchport mode trunk
  no switchport monitor
  no switchport dot1q ethertype
  no switchport priority extend
  switchport trunk allowed vlan 1,11,111
  spanning-tree port-priority 0
  spanning-tree cost auto
  spanning-tree link-type auto
  spanning-tree port type normal
  no spanning-tree bpduguard
  no spanning-tree bpdufilter
  logging event port link-status default
  logging event port trunk-status default
  duplex full
  flowcontrol receive off
  flowcontrol send off
  no negotiate auto
  mtu 1500
  delay 1
  snmp trap link-status
  bandwidth 60000000
  no bandwidth inherit
  storm-control broadcast level 100.00
  storm-control multicast level 100.00
  storm-control unicast level 100.00
  no storm-control action
  no shutdown lan
  load-interval counter 1 30
  load-interval counter 2 300
  no load-interval counter 3
  medium broadcast
  no shutdown

Re: Troubles with vlan 1 between extreme and cisco

Miguel-Angel_RO — Wed, 31 Mar 2021 16:32:05 GMT

Hi popeye,

Usually the VLAN 1 should be untagged.

Is that the case on the EXOS?

Mig

Re: Troubles with vlan 1 between extreme and cisco

PeterK — Wed, 31 Mar 2021 16:35:36 GMT

afaik “switchport mode trunk” on cisco means ALL vlans tagged

If you add VLANs as tagged on a port at EXOS switches VLAN1 still is untagged.

You can set vlan 1 as native vlan on cisco side OR remove it on EXOS and add it as tagged again.

Re: Troubles with vlan 1 between extreme and cisco

popeye — Wed, 31 Mar 2021 16:43:21 GMT

On extreme all of the vlans is tagged.

On cisco at this trunk vlan 1 is native.

But, when I tried change the native vlan on cisco on this trunk my portchannel became down (all of the 6 10G ports)

Re: Troubles with vlan 1 between extreme and cisco

PeterK — Wed, 31 Mar 2021 16:46:40 GMT

ok, then you should share the config of both sides. Otherwise it’s difficult to find the reason

When the ports go down, it sounds a bit like a stp issue

Re: Troubles with vlan 1 between extreme and cisco

popeye — Wed, 31 Mar 2021 16:52:45 GMT

On extreme I configured only vlans and sharing:

enable sharing 41 grouping 41-46 algorithm address-based custom lacp

configure vlan "Default" add ports 41 tagged

Re: Troubles with vlan 1 between extreme and cisco

PeterK — Wed, 31 Mar 2021 16:59:01 GMT

then you should check spanning tree behavior on both sides.

Re: Troubles with vlan 1 between extreme and cisco

popeye — Wed, 31 Mar 2021 17:17:11 GMT

Thank you. I’ll check it.