Good day, Cisco-NSP! We've ran into an odd issue with Cisco 6504 with SUP720-3BXL running 122-33.SXH.
A system (or systems) with multiple IP addresses, same MAC or different MACs for all IP addresses getting unusually slow download speeds and it seems to be src-ip related. #1 IP: xx.xx.xx.31 ; wget from a remote host grabs a file @ 8-10M/s speed (optimal speed, let's pretend) #2 IP: xx.xx.xx.32 ; @ 300K/s identical file - [FreeBSD ISO (432M)] #3 IP: xx.xx.xx.33 ; @ 800K/s identical file, etc We isolated this to a specific device, our core Cisco 6504. Forcing outgoing traffic to go via alternative transit providers did not change overall picture. Upstreams are not saturated in any way. Transfer rates stay at the same levels for the above IP addresses. It looks like that across our entire network. Pretty random stuff. Changing OS on the server - no change. Changing MACs - no change either. We also tried to wget from different locations as well, in terms of the speed everything stays the same across all of the above IP addresses. We're positive that this is related to src-ip. Yet, what's weird is that within our internal network download speeds 80-90M/s+ are easily achieved from same IPs that are 'slow' from the outside! Could it be QoS-related, ISO bug? What else could it be? Please, let me know what other information may be required to solve this mystery. Thanks! Jason _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
