Avaya has released software 3.7.5 for the Ethernet Switch 460 and 470 switch models.
While there were no new features added but there were a number of bug fixes;
- The status of the stack ports are now correctly displayed when interrogating the MIB for the stack (Q02082410)
- If MAC addresses are quickly aged out of the forwarding database when the device is authenticated via Non-EAP memory is no longer memory incorrectly consumed (Q02090742)
- Previously the ifOperStatus reported the status of the IP Management interface based on the port status. Now the switch reports status based on the virtual status of the IP Management VLAN, meaning that if any port in the management VLAN is up, then the status of the management VLAN is reported as up. (Q02114651)
- The log events created on non-base units in a stack now correctly display the time when SNTP is enabled (Q02112485)
- VLACP settings are now correctly set when operating in a stack and the VLACP parameters are defaulted (Q02069051)
- When the member of a MLT group which was carrying multicast traffic is reset, IGMP membership is now correctly re-learnt without an unexpected delay of 40 second (Q02066898)
- When IGMP Snooping and Proxy is enabled in a stack if the IGMP general query and IGMP host membership report are received on the same unit in the stack, IGMP packets are now correctly processed (Q02070898)
Please review the release notes for all the details.
Cheers!
Note that Nortels definition of “quickly aged out” is when you use the default 300 second aging.
The memory leak issues fixed in 3.7.5 are present in 3.7.2, and attempted fix in 3.7.3 made things worse and it was withdrawn, 3.7.4 slowed the NEAP from a three week reboot cycle to a three month cycle with the default aging, six months if you add a zero the aging period.
3.7.5.002 (beta code) has shown over six months of stable use with the default aging timer. The recently released GA code 3.7.5.12 seems similarly stable.
The features prompting the leak include BPDU filtering (but to a lesser extent)
For those interested a mem-show at the CLI will show you the leak if repeated over a number of days and weeks (just check the top line of the response)
The 3.7.5.x version has a small change in CLI response prompts which might make scripted backups fail until the script is changed. Behaviour is now similar to recent CLI behaviour on 4xxx, 5xxx series.
Thanks for the additional details Steve!
I’d just like to clarify for those unfamiliar that this issue only arises if you are performing 802.1x(EAP) authentication of your wired devices.
I have around 450 Ethernet Switch 470 switches/stacks with the vast majority running 3.7.2 without any issues. I’m not performing 802.1x/EAP authentication of my wired devices and I haven’t yet enabled BPDU filtering on those switches. (I am using BPDU filtering on the ERS 4500, 5500 series switches).
I haven’t personally tried 3.7.5 yet (in the lab) myself so I have no practical experience to speak of regarding the software or it’s stability.
If you have a Linux server handy (along with a TFTP server) I have a great script that will backup your switch using SNMP commands (which haven’t changed). I going to release a new version that now covers a large number of Cisco switches as well as Nortel/Avaya and HP GbE2 switches.
Thanks for the comment Steve!