I've recently added a few brocade san switch modules to NCM and when downloading all the configs (all using same username/device template). Some will download the configuration and others get "connectivity issues, discarding configuration (or configuration is too short)" message. Wait a few minutes and repeat and randomly some will receive and others get the same message. Some devices won't receive the configuration unless you re-attempt multiple times. This behavior only seems to be happening to brocade devices. My cisco devices all download correctly each and every time.
Steps I've Taken:
1) Increased the protocol settings Telnet/SSH connection timeout and prompt timeout thresholds.
2) Increased Simultaneous Downloads/Uploads sessions and increased Config Min Length.
Device Info:
Brocade SAN Switch Module
Brocade 8Gb SAN Switch Module for IBM eServer BladeCenter
SYSOBJECTID 1.3.6.1.4.1.1588.2.1.1.73
Using Brocade Switch-1.3.6.1.4.1.1588.2.1.1 template found in Thwack.
Anyone have any ideas? Thanks!