Extreme Networks ExtremeWare XOS 11.3, Manual

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Using the Command Line Interface
ExtremeWare XOS 11.3 Concepts Guide
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NOTE
This restriction is only enforced in an active STPD and when you enable STP to make sure you have a legal STP
configuration.
Only one carrier VLAN can exist in an STPD:
Only one carrier VLAN can exist in a given STPD although some of the ports on the carrier VLAN can
be outside the control of any STPD at the same time.
The StpdID must be identical to the VLANid of the carrier VLAN in that STPD.
The switch keeps aging out endstation entries in the switch FDB:
If the switch continues to age out endstation entries in the switch FDB:
●
Reduce the number of topology changes by disabling STP on those systems that do not use
redundant paths.
●
Specify that the endstation entries are static or permanent.
ESRP
ESRP names:
There are restrictions on Extreme Standby Router Protocol (ESRP) names. They cannot contain
whitespaces and cannot start with a numeric value.
You cannot enable an ESRP domain:
Before you enable a specific ESRP domain, it must have a domain ID. A domain ID is either a user-
configured number or the 802.1Q tag (VLANid) of the tagged master VLAN. The domain ID must be
identical on all switches participating in ESRP for that particular domain. If you do not have a domain
ID, you cannot enable ESRP on that domain.
Please note the following on the interaction of tagging, ESRP, and ESRP domain IDs:
●
If you have an untagged Master VLAN, you must specify an ESRP domain ID.
●
If you have a tagged master VLAN, ESRP uses the 802.1Q tag (VLANid) of the master VLAN for the
ESRP domain ID. If you do not use the VLANid as the domain ID, you must specify a different
domain ID.
You cannot delete the master VLAN from the ESRP domain:
If you attempt to remove the master VLAN before disabling the ESRP domain, you see an error
message similar to the following:
ERROR: Failed to delete master vlan for domain "esrp1" ; ESRP is enabled!
If this happens, do the following:
●
Disable the ESRP domain using the
disable esrp
command.
●
Remove the master VLAN from the ESRP domain using the
configure esrp delete master
command.