(Apologies to people who've seen the other half of this on j-nsp)
Has anyone seen an N7k sending LACP PDUs tagged with the following config:
vlan dot1Q tag native
int eth3/1
channel-group 20 mode active
int po20
switchport
switchport mode trunk
switchport trunk native vlan 111
switchport trunk allowed vlan 999
In this situation, the LACP PDUs are coming out tagged with vlan 111,
and are being ignored by the neighbouring device (a Juniper SRX).
AFAIK, IOS doesn't do this, even with "vlan dot1q tag native" set
globally (which we set for avoidance of "half-directional" tagged links).
We are able to work around with this config:
int eth3/1
channel-group 20 mode active
int po20
no shut
int po20.999
encapsulation dot1q 999
...
...but I'd prefer to avoid that.
Also unlike IOS, there doesn't seem to be a per-interface "[no]
switchport trunk native vlan tag" to override it :o(
This is on NX-OS 5.2(4), with M-series linecards.
Cheers,
Phil
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