Enabling and disabling isl trunking – HP Brocade 4Gb SAN Switch for HP BladeSystem p-Class User Manual
Page 116
116 Administering ISL trunking
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Use the
portperfshow
command as described in the following procedure to record traffic volume
for each port in your fabric over time.
To use the
portperfshow
command:
1.
Connect to the switch and log in as admin.
2.
Issue the following command:
portperfshow
[interval]
where
interval
is the number of seconds between each data-gathering sample (the default is one
sample every second).
3.
Record the traffic flow for each port participating in an ISL.
4.
Repeat
for each switch in the fabric until all ISL traffic flow is captured.
In a large fabric, it may be necessary to only identify and capture the key ISLs. However, you may
want to continue this process throughout the day (or an entire work cycle), to capture varying traffic
patterns under different conditions.
The following example shows a switch without trunking, and indicates that ports 0 through 2 are
underutilized and ports 4 and 5 are congested:
The following example shows traffic flowing through a trunking group (ports 5, 6, and 7). After port 6
fails, traffic is redistributed over the remaining two links in the group, ports 5 and 7:
Enabling and disabling ISL trunking
You can enable or disable ISL Trunking for one port or for an entire switch. To enable or disable ISL
Trunking on one port:
1.
Connect to the switch and log in as admin.
switch:admin> portperfshow
0
1
2
3
4567 Total
--------------------------------------------------------------------
0
0
0
145m204m202m0168m 719
0
0
0
145m206m208m0186m 745
switch:admin>
switch:admin> portperfshow
0
1
2
3
4567 Total
--------------------------------------------------------------------
0
0
0
0
0145m144m145m 434
0
0
0
0
0144m143m144m 431
0
0
0
0
0162m0162m 324
0
0
0
0
0186m0186m 372
0
0
0
0
0193m0192m 385
0
0
0
0
0202m0202m 404
0
0
0
0
0209m0209m 418
switch:admin>