Nortel 5000 Series Release Notes page 42

42 Known issues and limitations
Change Request
Number
Q01944831
The following table lists known Ethernet Routing Switch 5000 Series
considerations:
Table 8
Ethernet Routing Switch 5000 Series considerations
Item Description
1 Some terminal programs can cause the Console Interface to crash if you enter a
RADIUS secret containing the character "k". The issue has been reproduced
using Tera Term Pro (version 2.3), as well as Minicom (version 2.1) on a Linux
system.
2
Nortel recommends that you avoid using MAC security on a trunk (MLT).
3 Failed attempts to log in (using TACACS+ authentication and accounting) are
not stored in the accounting file.
4 When switches are in MSTP mode and connected using a trunk (MLT), and at
least one MSTI is configured, the switch can return an incorrect STPG root if you
change the mode to STPG and reset the switches.
5
When you use the JDM/Web to configure and add VLAN ports to an STG other
than the default STG, STG membership of the port may change. In that case,
the new STG participation of that port will be disabled.
Workaround: Enable participation of the ports in the new STG after you enable
the STG.
Copyright © 2008., Nortel Networks
.
Description
To avoid this, make sure that only the DR has the (*,G) entry in the system.
Workaround: If this condition occurs, disable and enable PIM on the non-DR
and DR.
With release 6.0.0, there may be connectivity issues with Telnet and
Web-based management connections to the IPv6 management interface
when the traffic between the Ethernet Routing Switch 5000 Series switch and
the host PC passes through a switch that drops frames larger than 1522
bytes. This happens because the default MTU for the IPv6 management
interface is 1522 bytes, and must be set to a lower value of 1500 bytes.
To change the MTU for the IPv6 interface from the Command Line Interface,
type the following
enable
configure terminal
interface vlan 1
ipv6 interface mtu 1500
Nortel Ethernet Routing Switch 5000 Series
Release Notes — Release 6.0
NN47200-400 04.01 Standard
6.0 12 December 2008