Brocade Fabric OS Command Reference Manual Supporting Fabric OS v7.0.0 (April 2011)

804 Fabric OS Command Reference
53-1001764-01
portShow
22
To display FICON XRC performance data:
switch:admin> portshow xtun 23 -ficon -xrcperf
XRC Performance Monitor Data:
=============================
Sample Time Period in ms: 11340
Emulated Chains per sec: 16
Emulated RRS Cmds per sec: 16
Emulated RRS Bytes per sec: 640
Average RRS Update Size: 40
FUNCTION Commands supported only on the Brocade FR4-18i blade
SYNOPSIS portshow option [slot/]ge_port [all | tunnel_id ] [arguments]
DESCRIPTION Use this command to display configuration parameters and status information for FCIP tunnels on the
Brocade FR4-18i blade. The following display options are supported:
• portShow fciptunnel - Displays Fibre Channel over IP (FCIP) tunnel configuration settings
including the following:
- Additional performance parameters
- FC data path credit data
- Connection parameter information
- IKE and IPSec policy information on IPSec-enabled tunnels
- VC to FCIP QoS mapping table
- FCIP TCP Byte Stream statistics on Byte Stream-enabled tunnels
- History of TCP connections
- SnapShow capture of TCP statistics between two points in time
• portShow mode - Displays Port Mode information.
• portShow ficon - Displays FICON parameters on FICON-configured tunnels.
Each GbE port is associated with a TCP history, which tracks the state of statistics at the moment of a
TCP connection failure. An entry is logged for the TCP connection when it encounters any of the
following failures:
• Maximum number of retransmits is exceeded (MAX RTX)
• Maximum keep alive timeout is exceeded (KEEPALV TO)
• RST packet is received (RESET RCVD)
You can display the TCP history with the fciptunnel -hist command. This command displays a maximum
of 16 entries. Once the maximum history length is reached, the oldest entry is removed from the end, and
the newest entry is added to the front of the TCP history as future connection failures occur. The
following data items are captured when a TCP connection encounters a failure:
Reason
The reason for the TCP connection failure
RTT
Round trip time
RTT H
Round trip time high water mark
Var
Variance