User guide

Open Problem Reports and Feature Exceptions
OmniSwitch 6600/7000/8800—Release 5.1.5.R04 page 63
PR 76491
The aging process in the case of disabled vlans is not the same on OS6600 as it is on OS7000 and OS8000
switches. This is due to the architectural difference between the software running in those switches.
Workaround: There is no known workaround at this time.
PR 80435
On the OS8800, if you change the protocol to 1W in the Root switch first, chances are the root switch
would still receive 1D BPDUs from other switches, causing the root switch to revert back to 1D. There's
nothing we can do here.
Workaround: Please change the protocol on the non-root switches first and then do the root switch last.
PR 84694
On an OS6600, some of the mac-addresses (learned across the link aggregate ports) are not flushed
completely, even after passing the aging-timeout value (set for that VLAN).
Workaround: There is no known workaround at this time.
PR 84695
On an OS6600, even after configuring a permanent MAC address for a linkagg port, the address is learned
as a dynamic MAC address.
Workaround: There is no known workaround at this time.
Spanning Tree
Problem Reports
PR 61259
The 802.1Q Spanning Tree (also called Multiple Spanning Tree) is a proprietary protocol based on tagging
BPDU. As a consequence, the OS7000 Spanning Tree is not compatible with other vendors' Spanning
Tree.
Workaround: In order to inter-operate with Spanning Tree from other vendors (802.1d,802.1w and
802.1s), the Spanning Tree of the OS7000 must be configured in Flat mode.
PR 62244
During a takeover, some over processing on the NI side may prevent the switch (root bridge) to forward
its BPDU on the OS7000/8800. In such a case, the max age timer may trigger on the switch closest to the
root bridge, generating a Topology change. After the over processing burst, everything returns to the
initial state.
Workaround: There is no known workaround at this time.