Specifications

Clarifications and Known Behaviors
ExtremeWare 7.1.1 Release Notes 43
High Traffic with 120 STP Instances
If you configure more than 120 STP instances and more than 130 VLANs, and lose a link while
forwarding a high traffic load, the port might be unstable (PD2-118500801).
Configuring a VLAN from Vista
If you create an STPD using ExtremeWare 6.1.9 (or earlier), add a VLAN, save the configuration,
upgrade to ExtremeWare 6.2.2b68 (or later), and save the configuration, you receive the following error
message when you try to modify the VLAN from Vista:
ERROR: Cannot assign bridge to stpd! HINT: If a port is part of multiple vlans, the
vlans must be in the same Spanning Tree domain.
To work around this problem, make configuration changes from the CLI (PD2-118450190).
STP and VLAN Tagging
VLAN tagging is not supported with 802.1d Spanning Tree (STP) BPDUs. Therefore, all BPDUs in a
802.1d STP domain are untagged. However, Extreme Multiple Instance Spanning Tree (EMISTP) and
Per-VLAN Spanning Tree (PVST+) do support VLAN tagging of BPDUs.
EMISTP and Ingress Rate Shaping
If a loop exists in your network, but STP is not enabled and Ingress Rate Shaping is, the switches
appear to hang and are rebooted by the watch-dog timer. A similar situation exists if a loop is covered
by STP on both sides and is disabled on one side; normally the other switch immediately blocks the
right port(s), but when Ingress Rate Shaping is present, both switches appear to hang and are rebooted
by the watch-dog timer (1-5E9R1).
Upgrading From an ExtremeWare 6.1.9 (or earlier) Configuration
After downloading an ExtremeWare 6.1.9 (or earlier) configuration to an ExtremeWare 6.2.0 (or later)
image, a port belonging to a non-default VLAN generates the “Stpd s0, Port 1:1 does not exist” error
message because that VLAN does not belong to domain s0 by default (1-BMP5D).
ESRP
The disable slot all Command Generates EDP Errors
If you have ESRP enabled, the disable slot all command generates EDP errors. You can safely
ignore the error messages (PD2-166105101).
Environmental Tracking on a Chassis with One PSU
If you enable environmental tracking on a BlackDiamond with only one PSU installed, tracking fails.
This is by design (PD2-147052232).
Large Configurations Might Lock Console when Enabling and Disabling s0
If you have more than 60 STP domains with more than 200 tagged VLANs between them and more
than 6 ports in each, and you enable then immediately disable s0, the console might freeze for up to a
minute. Larger networks cause the console to remain locked for longer periods. The switch is still