Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations Mike Lewis on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!

ADD login failure

Status
Not open for further replies.

FONEGUY

Technical User
Jan 28, 2002
91
US
I have a site running SCCS 5.0 , SWC 4.5 with a small group of agents that are having problems logging onto their Agent Desktop Display ( ADD ). For whatever reason , only 2 of the 6 agents can log on the ADD at any given time . When any 2 agents login , the remaining 4 agents receive this error message " Login failed - unable to initialize thread listening to data from multicast port 230.0.0.2 " . If the 2 original agents logout , any of the other 4 can take their place . It doesn't seem to matter who the agent is , what PC is used or when they login , the only common symptom is the 2 of 6 gaining access .Has anyone seen this before ? Any thoughts on where or what could be limiting the number of ADD users ? The local vendor seems to think this is some sort of network/multicast limitation but they don't know how to resolve the issue . Any suggestions will be greatly appreciated .
 
Hi there,

I've also got some users that have trouble accessing ADD, and we've been informed that we need to setup multicasting as our ADD users are at a remote site - thus need to allow multicasting across the WAN links (apparently there are only so many unicast sessions allowed, but i'm not sure where this is setup for ADD - on cisco devices its setting up the routing devices to allow multicast traffic - commands such as 'ip multicast-routing distributed', 'ip pim sparse-mode' & adding an RP (rendezvous point) in our case the vlan address that the web client is on e.g. 'ip pim rp-address 10.x.x.x'

If your accessing ADD from the LAN not remotely the above probably wont help!
 
Just to clarify.

ADD doesn't work at all unless multicast is enabled on the LAN/MAN/WAN.

The realtime displays use multicast as default if it's available on the LAN/MAN/WAN, but will fallback to unicast if it's not (denoted by the M or U at the top of the display).

Are all the PCs on the same VLAN? There's no reason for multicast subscriptions to be throttled as far as I know. You could try running a sniffer on the affected PCs (one that works and one that doesn't - monitor the traffic as it successfully fires up/doesn't fire up)

DD

 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top