Fc Routing And Forwarding Commands; Display Fc Exchange - HP 6127XLG Blade Series Command Reference Manual

[Sysname-vsan1] wwn 33:e8:00:05:30:00:16:df area-port-id ab12

FC routing and forwarding commands

display fc exchange

Use display fc exchange to display the FC exchange entries.
Syntax
display fc exchange { link | protocol } [ slot slot-number ]
display fc exchange link verbose [ slot slot-number [ exid exid ] ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
link: Displays link exchange entries.
protocol: Displays protocol exchange entries.
verbose: Displays detailed information about link exchange entries.
exid exid: Displays link exchange entries for an exchange ID in the range of 0 to 65534. If no exchange
ID is specified, this command displays all link exchange entries.
slot slot-number: Specifies an IRF member device by its member ID. If no IRF member device is specified,
this command displays exchange entries for the master IRF member device.
Usage guidelines
The exchange is a basic concept of FC. All data frames and control frames are transmitted based on the
exchange. An exchange indicates one data exchange between communication entities and can contain
multiple bidirectional packet exchanges.
An exchange pair (initiating exchange and responding exchange) must be created for each data
exchange. Service classes that provide reliable transmission services (classes 1, 2, and 6) perform packet
acknowledgement, error detection, and packet retransmission based on the exchange pair.
Exchanges include the following categories:
Protocol exchange—Created only at the server end based on the protocol number and VSAN ID
•
and used for monitoring connection setup.
Link exchange—Created at both ends based on the exchange ID and used for packet exchange.
•
Examples
# Display the protocol exchange entries.
<Sysname> display fc exchange protocol slot 1
Local_ID:EXID
0x000000:65535
# Display the link exchange entries.
Remote_ID:EXID
0x000000:65535
State Slot Protocol
LISTEN 1 6
51