Nortel Secure Router 4134 Anyone using these?
smokinpope
routers. One for our corporate office and one for our D.R. site. They
are replacing our Nortel BLN Routers. We have had nothing but a hard
time getting these routers implemented. After configuration, when
implemented we were not able to get any of our thin clients, printers
or RDP sessions from our remote locations to connect. Even while using
a 45Mbs DS3 Circuit, lower end services such as ping, telnet, snmp
worked without any issues. It appeared to affect only the higher level
functions. After researching we were told our MTU setting my was set
too low at 1500. We then bumped up the MTU to 1601 and disabled
fragmentation_RFC_1490.
Upon our next test, when we implemented, everything appeared to
working fine, print jobs were working, thin clients were able to
connect, we could even VNC to pc's at the remote locations. Seemed
pretty fast as well. Now granted we were testing on a Sunday, not many
of our remote locations were even open. But it seemed like the MTU and
Fragmentation changes resolved the issue. On Monday however at 7:00am
our entire network came to a crawl. Everything was still working, just
extremely slow, 10-15 mins to log onto a thin client. print jobs would
hang...etc. When we looked at our Network Utilization we were only
using 20Mbs of out 45Mbs pipe. Due to the fact that I was not here
during the slowdown. I was not able to get any pcaps on the either the
T3 interface or Ethernet interface. I was even to see if Auto QOS was
causing an issue. However as soon as we switched back to our trusted
BLN. The network came back instantaneously, and started running fine
again.
My question is this. Is any one else using this particular model of
router? If,so has anyone experienced the same kind of issue? I have
tried looking on Nortel's website, but all the documentation they have
does not go very in depth, mostly just configuration and limited
troubleshooting. Unfortunately I am more familiar with Cisco routers,
than I am with Nortel. Any help would be greatly appreciated, I am
basically looking for more info, either from forums, other news
groups, etc... Thank you