Search results for query: *

Is your root bridge moving around during the blips? I'm wondering if this is a root guard or loop guard feature in Cisco that the 5520s aren't playing well with.

As I recall the switch will change from "RJ45 mode" to "SFP mode" when the SFP is plugged in, but that might vary by switch - I've never had this problem with those models. Another possibility that comes to mind is that the optics might not be 'Nortel-compatible' which would mean that the...

I've seen that - the switch is in stacking 'mode' and so the ports are 'stacking' ports instead of 'normal' ports that show up in the menu. I think it's possible to switch the port using the front-panel button like Andy mentioned above but I remember using the command-line interface (there...

I had the newer 450-like units, they were nice little switches too... inexpensive and easy to use. If you enable Authentication Traps do you get any alerts sent to the Trap#1 IPs when trying to query the switch? I usually use the net-snmp.org tools for such things - you might want to give them...

I used to have a whole bunch of BayStack 350s and used SNMP without issues... in addition to the SNMP community you might need to configure the IPs allowed to connect. I remember there was a menu for that but don't recall what the defaults were.

It might be helpful to know more about the type of traffic. Have you ever managed to get a packet capture during the flood?

You're correct, you'll need a route in the ADSL router so it knows how to get to addresses in your VLAN 2 and 3 - in this case the route will be the VLAN 1 IP address of the ERS4500.

Flow control usually gets negotiated automatically along with the speed/duplex - do you have them hard-coded? Perhaps there is a bug where the switch is autonegotiating flow control if it also negotiates the speed and/or duplex. Nortel added the option to autonegotiate all of the above but...

In your TFTP menu do you have to option to get transfer software/firmware off of the 'newer' switch? Then you'd be able to load the same file back onto its soon-to-be partner.

If the problem follows the switches on those floors I'd suspect an uplink or ACL sort of issue. You could swap switches with a unit that works to narrow it to the uplink or switch config... what kind of switches are you using?

I had some notes on doing this from CLI for baystack switches in this post: http://www.tek-tips.com/viewthread.cfm?qid=1504572 I backup my 8600s using a Perl script that connects to them and prints out the config... not graceful but it works and has the benefit of being able to show the status...

OK so it's a binary config file. You'll need a TFTP server that can talk via IP to the switch, I like the one at http://tftpd32.jounin.net but a simple one like 3CServer will work fine. Once you can ping back and forth between server and switch you'll load the binary config file on the TFTP...

If you open up the backup file in Notepad does it look like switch commands or does it look like a bunch of unreadable characters (a binary file)? In the menus you should be able to find options to load either kind onto the switch via TFTP.

It's a straight-through serial cable, which is different than many devices.

I've only ever used those modules with 8692 CPUs, but I think if the software version that will support the 8648GTE runs on an 8691 it should be supported. Do I remember that there were memory upgrades that could be applied to the 8691s that allowed them to run a few versions of code beyond...

I wouldn't expect problems, those modules are a little older and should be well supported unless you were running CPU code that was very old.

Do the 5500 family of switches still need software licenses to unlock all of the features?

Your message would better be asked in CS1000 forum: http://www.tek-tips.com/threadminder.cfm?pid=798 This forum is for Nortel data systems.

Here's a good summary of the messages: http://www.oleksiygayda.com/2010/12/how-to-decypher-passport-8600-vrrp.html There has been talk of high CPU loads causing problems with VRRP, if that's not the case in your situation you might glance at this previous thread that included discussion that...

Depending on the model and your situation you might be able to use something like Net-SNMP to automate the backup. There was a thread a couple years ago about it: http://www.tek-tips.com/viewthread.cfm?qid=1208352 I wrote a crude utility to update microcode using the same scheme at around the...