Known Issues And Limitations; Known Issues - Nortel 5000 Series Release Notes

Known issues and limitations

Use the information in this section to learn more about known issues and
limitations. Where appropriate, use the workarounds provided for these.

Known issues

See the following table for a list of known anomalies for the Ethernet Routing
Switch 5000 Series release 6.0.
Table 7
Ethernet Routing Switch 5000 Series known issues
Change Request
Number
Q01280422
Q01328936
Q01331097
Q01345613
Q01309758
Q01319650
Q01334543
Q01339715
Copyright © 2008., Nortel Networks
.
Description
The switch may display "0" for the root port (spanning tree), rather than
"None".
Note that the greater the number of VRRP instances you have, the greater
the risk of VRRP bounces (Release 5.0 supports 64 VRRP instances).
To help alleviate VRRP bounces, when you configure FAI on VR instances,
set the FAI to 600 ms or higher.
In general, for a large number of VRRP instances, Nortel recommends that
you use a higher advertisement interval.
If LACP is enabled on a port that you configure as a Nortel SNA uplink port,
the switch does not allow you to disable LACP on that port.
When you have VRRP and traps enabled, OSPF convergence may slow
down.
The switch does not return a meaningful message when you attempt to add
five or more IP prefix lists into a policy.
The IPFIX flush menu item is present and functioning in the CLI, although the
ip ipfix flush command and its parameters do not display in the menu
when you enter an ip ipfix ? command query (Global configuration
mode).
Nortel Ethernet Routing Switch 5000 Series
Release Notes — Release 6.0
NN47200-400 04.01 Standard
6.0 12 December 2008
29