11-22-2007 10:46 PM
I have configured FCIP between DC and DR IPSAN switches. FCIP is up but not trunking. On both switches trunk mode is on. Hence my VSAN (id 20 on both switches) not merging.
See below FCIP interface status...
fcip1 is up
Hardware is GigabitEthernet
Port WWN is 20:10:00:0d:ec:35:68:40
Peer port WWN is 20:10:00:0d:ec:34:d6:80
Admin port mode is auto, trunk mode is on
snmp traps are enabled
Port mode is E, FCID is 0x9a0002
Port vsan is 1
Speed is 1 Gbps
Using Profile id 1 (interface GigabitEthernet1/1)
Peer Information
Peer Internet address is 10.128.1.95 and port is 3225
Write acceleration mode is configured off
Tape acceleration mode is configured off
Tape Accelerator flow control buffer size is automatic
Ficon Tape acceleration configured off for all vsans
IP Compression is disabled
Special Frame is disabled
Maximum number of TCP connections is 2
Time Stamp is disabled
QOS control code point is 0
QOS data code point is 0
B-port mode disabled
TCP Connection Information
2 Active TCP connections
Control connection: Local 10.132.1.95:65260, Remote
10.128.1.95:3225
Data connection: Local 10.132.1.95:65262, Remote 10.128.1.95:3225
138 Attempts for active connections, 16 close of connections
TCP Parameters
Path MTU 1420 bytes
Current retransmission timeout is 200 ms
Round trip time: Smoothed 22 ms, Variance: 4 Jitter: 661 us
Advertized window: Current: 2412 KB, Maximum: 2412 KB, Scale: 5
Peer receive window: Current: 2047 KB, Maximum: 2047 KB, Scale: 5
Congestion window: Current: 1170 KB, Slow start threshold: 1950 KB
Current Send Buffer Size: 2412 KB, Requested Send Buffer Size: 0 KB
CWM Burst Size: 50 KB
5 minutes input rate 328 bits/sec, 41 bytes/sec, 0 frames/sec
5 minutes output rate 256 bits/sec, 32 bytes/sec, 0 frames/sec
3551 frames input, 419612 bytes
3443 Class F frames input, 406076 bytes
108 Class 2/3 frames input, 13536 bytes
8 Reass frames
0 Error frames timestamp error 0
3572 frames output, 324264 bytes
3464 Class F frames output, 312996 bytes
108 Class 2/3 frames output, 11268 bytes
0 Error frames
-----------------------
I have one more pair of IPSAN switches. I configured them which are working fine. FCIP interface is showing "trunking". I have compared the configuration of working and non-working pairs and both are same (except the IP address of locate and remote and VSAN ids).
Please suggest what can be done. If I get the FCIP port in trunking, I hope VSAn will start merging.
11-23-2007 09:33 AM
The problem is here -
Port mode is E, FCID is 0x9a0002
Port vsan is 1
What it says is yes, it is a trunk , but only an E port. So it is only trunking the port VSAN 1. What you want to do is change it to a Trunking E port, which allows it to carry multiple vsans over the link.
The other option is to change the port VSAN to 20. That will get you up, but if you need to trunk more vsans in the future you will still have to change the FCIP to a TE port.
When everything is right it should look something like this -
P28-MDS-9216# sho interface fcip 2
fcip2 is trunking
Hardware is GigabitEthernet
Port WWN is 20:42:00:0d:ec:0c:e6:40
Peer port WWN is 20:42:00:0d:65:6a:18:40
Admin port mode is auto, trunk mode is on
snmp traps are enabled
Port mode is TE
Port vsan is 1
Speed is 1 Gbps
Trunk vsans (admin allowed and active) (1,20)
Trunk vsans (up) (1,20)
Trunk vsans (isolated) ()
Trunk vsans (initializing) ()
Using Profile id 1 (interface GigabitEthernet2/1)
Peer Information
Peer Internet address is 10.2.28.2 and port is 3225
Write acceleration mode is configured off
Tape acceleration mode is configured off
Tape Accelerator flow control buffer size is automatic
Ficon Tape acceleration configured off for all vsans
IP Compression is disabled
Special Frame is disabled
Maximum number of TCP connections is 2
Time Stamp is disabled
The document for configuring FCIP trunks on the MDS is available here -
http://www.cisco.com/univercd/cc/td/doc/product/sn5000/mds9000/3_0/clicnfg/part6/cfcip.htm
If you found this helpful please rate it -
-- Colin McNamara
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