Cisco MDS 9000 Series Troubleshooting Manual page 106

Troubleshooting FCIP Connections
S e n d c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m .
TCP Active Connections
(This is used for F control traffic only.)
10.10.10.2:3225
(Send-Q increasing during read-only test.)
(The TCP listen port is ready for new TCP connections.)
You can use the following command to verify that traffic is incrementing on Gigabit Ethernet port of the
FCIP tunnel.
MDS1# show ips stats mac interface gigabitethernet 2/8
Ethernet MAC statistics for port GigabitEthernet2/8
Hardware Transmit Counters
Hardware Receive Counters
Software Counters
Traffic statistics can be verified on the internal ASIC chip on each Gigabit Ethernet port.
MDS1# show ips stats flamingo interface gigabitethernet 2/8
Flamingo ASIC Statistics for port GigabitEthernet2/8
Hardware Egress Counters
(Good frames and CRC error frames can be monitored.)
Hardware Ingress Counters
(Verify good increments on the active tunnel.)
Software Egress Counters
Software Ingress Counters
On the next few pages are screen captures taken with Ethereal, of TCP connection being established, and
FCIP tunnels. Note that FCIP tunnel activation is the same as an FC EISL becoming active (such as ELP,
ESC, and EFP). The following traces were captured after configuration on both MDS 9000 Family
switches, and the last "no shutdown" was entered on switch MDS1. All settings are default (for
example, SACK is disabled, the TCP window is set to 64K).
Cisco MDS 9000 Family Troubleshooting Guide
5-12
Local Address Remote Address
10.10.10.2:3225 10.10.11.2:65519
10.10.11.2:65521
10.10.10.2:3225 0.0.0.0:0
1074898 frame 1095772436 bytes
0 collisions, 0 late collisions, 0 excess collisions
0 bad frames, 0 FCS error, 0 abort, 0 runt, 0 oversize
33488196 bytes, 298392 frames, 277 multicasts, 16423 broadcasts
0 bad, 0 runt, 0 CRC error, 0 length error
0 code error, 0 align error, 0 oversize error
298392 received frames, 1074898 transmit frames
0 frames soft queued, 0 current queue, 0 max queue
0 dropped, 0 low memory
2312 Good, 0 bad protocol, 0 bad header cksum, 0 bad FC CRC
2312 Good, 0 protocol error, 0 header checksum error
0 FC CRC error, 0 iSCSI CRC error, 0 parity error
2312 good frames, 0 bad header cksum, 0 bad FIFO SOP
0 parity error, 0 FC CRC error, 0 timestamp expired error
0 unregistered port index, 0 unknown internal type
0 RDL, 0 RDL too big RDL, 0 TDL ttl_1
3957292257 idle poll count, 0 loopback, 0 FCC PQ, 0 FCC EQ
Flow Control: 0 [0], 0 [1], 0 [2], 0 [3]
2312 Good frames, 0 header cksum error, 0 FC CRC error
0 iSCSI CRC error, 0 descriptor SOP error, 0 parity error
0 frames soft queued, 0 current Q, 0 max Q, 0 low memory
0 out of memory drop, 0 queue full drop
0 RDL, 0 too big RDL drop
Flow Control: 0 [0], 0 [1], 0 [2], 0 [3]
Chapter 5 Troubleshooting IP Storage Issues
State Send-Q
ESTABLISH 0
ESTABLISH 87568 0
LISTEN 0
OL-5183-02, Cisco MDS SAN-OS Release 1.3
Recv-Q
0
0