05-27-2013 11:36 PM
We have an FCIP set up of 7500E from DC to DR which is running on a 1Gbps link.
The commit rate of FCIP Tunnel has been set to 512000Mbps(.512Gbps) in both 7500E . As per my understanding the max. data can be transfer through this link should be 64MB/Sec.
But from BNA12.0 & through portperfshow command it shows the transfer rate up 100MB/Sec.
Can anyone tell me what could be the reason to show the transfer rate more than the commited rate?
05-28-2013 12:39 AM
Sorry felpon.... Actually it is 512000 Kbps(.512Gbps)
Please see the tunnel parameters below:
Tunnel ID 0
Tunnel Description Not Configured
Remote IP Addr 10.x.x.x
Local IP Addr 10.x.x.x
Remote WWN Not Configured
Local WWN 10:00:00:05:1e:c1:f3:ce
Tape Pipelining off
Committed Rate 512000 Kbps (0.512000 Gbps)
Min Retransmit Time 100
Keepalive Timeout 10
Max Retransmissions 8
VC QoS Mapping off
DSCP Marking (Control): 0, DSCP Marking (Data): 0
VLAN Tagging Not Configured
TCP Byte Streaming off
Status : Active
Connected Count: 4
Uptime 22 hours, 52 minutes, 36 seconds
05-28-2013 01:01 AM
portperfshow gives you performances on VE-ports, ie. _before_ FCIP compression.
Have a look at portshow fciptunnel all -perf to get compression ratio (under QoS shaper performance stats section), it may be an explanation
05-28-2013 01:36 AM
Thanks David. I agreed. but the graph which I have taken from BNA12.0 should show the compressed data size... right?
It show the data transfer touches 85MB.
please refer the attachment.
05-28-2013 01:54 AM
It probably should indeed ... But I'm not really familiar with BNA
To see if this is a real commited rate issue or wrong information reported by BNA, I would get SNMP ifHCInOctets and ifHCOutOctets counters on ge interfaces (look at 268435456 index for ge0, 268435457 for ge1) and thus real IP traffic on ge ports
Hope this helps
05-28-2013 02:20 AM
You have to use a SNMP client (such as net-snmp, which is included in most unix/lunix distributions) and then query 7500 MIB ... something like 'snmpwalk -v2c -c public <router IP> ifHCInOctets'