Specifications

Clarifications and Known Behaviors
ExtremeWare 7.3.1b3 Release Notes 79
Incorrect Log Message
If you reboot after enabling STP and VLANs, the device might log the following incorrect message:
<STP.OutBPDU.Drop> Port=8:2: Illegal message age (65517)
This is a display issue only; functionality is not affected (PD2-208909326).
RSTP Does Not Detect Topology Change
If a physical link transitions from down to up when the ports are configured with point-to-point links
and 802.1w, RSTP does not detect a topology change (PD2-197365089).
Disabling STP Might Display Topology Change
When you disable STP, the output of the show stpd command displays a topology change. If there was
not actually a topology change, you can safely ignore this indicator (PD2-165211765).
FDB Not Flushed After Link Failure with RSTP
When using RSTP, the FDB is not flushed when recovering from a link failure. This is the expected
behavior (PD2-143730501).
Do Not Configure All Ports in s0
With all ports on several FM-32 modules in s0 and more than 256,000 FDB entries continuously
learning, deleting a range of ports from a VLAN, adding the same range to another VLAN, deleting
them from that VLAN, then adding them back to the first VLAN can cause a watchdog reboot. Do not
configure all ports in s0 (PD2-118450167).
Error Messages with Topology Changes
If you have STP domains configured on a switch and add active ports to the domain, bringing the links
up and down might generate error messages similar to the following (PD2-159834201):
<Erro:STP.OutBPDU.Drop> Port=4:13: Illegal message age (21)
Large STPD Configuration Download Might Reboot Switch
If you download a configuration with more than 70 STP domains, and each domain has more than 120
VLANs, the switch might reboot. To avoid this, disable the system watchdog timer, download the
configuration, and enable the timer (PD2-136044092).
A Large STP Configuration with 10 Link Transitions
If you have more than 120 802.1w STPDs with more than 2,000 total VLANs, a link failover might form
a loop. The loop might last as long as 40 seconds, depending on the number of VLANs configured
(PD2-135691018).
Configure Fewer than 4,000 VLANs in an STPD
If you add more than 4,000 VLANs to an STP domain, the switch might run out of memory
(PD2-135842818).