Thanks Andy88 , we found that these spurious macs were being generated from a particular port that fed a hub with various devices into it .This was used by our "Internet Security" guy who says it is necessary for his research ??
So as a work around we give him his own Vlan/subnet as the problem...
Hello All after the above upgrade our "corrupt arp" issues disapeared however it seems as though now the DHCP/DNS servers have databese corruptions with "bad address" and name resolutions to the wrong ip ?
The passports arp table will see 2 ip addresses with one to the correct mac and the other...
Hello All , we had a funny one , 2 X 8600 ,IST between and various 5500 switches hanging off them MLT,s but not SMLT.
Various servers on various subnets unable to ping each other ,then couple days later they can ? with no changes made ?
It seems I think to hinge around a 8648gtr blade in one of...
Hello All , after upgrading 470 , 5500 & BPS switches to SSH versions I am finding difficulty getting the same for the 4500 series ??
Is there such a thing or is it a case of setting security from command line ? and if so does anyone have any scripts for same ??
Big thanks in advance guys
Mucca
Hi Guys , does anyone have a simple command line script for a voice vlan to have premium traffic prioritised on the 4500 series ?
This could simply be done via the web browser on 5500 series but not on the 4500,s
Any help much appreciated
Big Thanks
Mucca
Hello Guys we have a 8010 core switch that needs updating to ver 5 and hardware replacement is needed.
What is the best fibre option to replace the old 8608 sx blades ? and do we need new fan trays to accomodate ?
Also is the 8648 GTR copper blade compatible with ver 5 ??
Also would the old...
Hello Guys , has anyone seen the foll error on a passport with the above ver ??
CPU5 [12/04/09 14:54:58] COP-SW ERROR Slot 3: portPollHandler() f2i lockup detected - lane 2
The blade seems to have reset 4 times over the wekend ??
Any help much appreciated
Thanks
Mucca
Hi All
Our customer is having some issues with VPN clients connecting to Contivity VPN routers.
“The issue that we are seeing is client connections dropping frequently and we have a mixture of version 4.65 and 6.01.120 clients. The Contivity VPN routers run version V06_05.175 .
I...
Hello guys , I have set the community strings on an 8600 , but they seem to have reset back to the old "public" & "private" defaults, is there a time limit for the community strings ??
It also will not let me telnet anymore or "device manage" as the gui is greyed out ??
It seems like a...
Afternoon,
I am just wondering if you could please answer the following question
I have 2 x ERS Nortel 5520 switches. One which is HW:04 and one which is HW:32.
They are running the same FW: 5.0.0.3 and SW:v5.0.8.035
But when enabling the Telnet write access through the console port...
Hello guys , anyone seen this problem ,one way communication for a few seconds then the other end is back to normal ?
It is intermittent and I do not think it is a QOS issue as they do not experience any wierd sound once conversation has commenced.they have 3 X 5500 switches accross 3 floors and...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.