Displaying The Remaining Buffers In A Port Group - HP A7533A - Brocade 4Gb SAN Switch Base Administrator's Manual

676 = a static number retrieved from
If you allocate the entire 484 + 8 reserved buffers = 492 buffers to a single port, that port can support
486 km at 2 G, which is the reserved buffer for distance.
How many 50 km ports you can configure?
If you have a distance of 50 km at 8 Gbps then 484 / (206 – 8) = 2 ports.
If you have a distance of 50 km at 1 Gbps then 484 / (31 – 8) = 21 ports.
NOTE: The 10 Gbps FC10-6 blade has two port groups of three ports each. For extended ISLs, all buffers
available to a group are used to support one port at up to 120 km.

Displaying the remaining buffers in a port group

Issue the portbuffershow command to display all of the long distance buffer information for all the port
groups of the switch. Use the following syntax:
portbuffershow [[slotnumber/]portnumber]
where:
• slotnumber specifies, for bladed systems only, the slot number of the port group to display, followed
by a slash (/)
• portnumber specifies the number of a port associated with the port group, relative to its slot for
bladed systems. Use switchShow for a list of valid ports.
1. Connect to the switch and log in as admin.
2. Issue the portbuffershow command.
switch:admin> portbuffershow 1
User
Port
----
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
switch:admin>
362 Administering extended fabrics
Port Lx
Type Mode
---- ----
U -
U -
U -
U -
U -
U -
U -
U -
U -
U -
U -
U -
-
-
-
-
U -
U -
U -
-
U -
U -
U -
U -
Table 76.
Max/Resv Buffer Needed
Buffers Usage Buffers
------- ------ -------
8 0
8 0
8 0
8 0
8 0
8 0
8 0
8 0
8 0
8 0
8 0
8 0
8 0
8 0
8 0
8 0
8 0
8 0
8 0
8 0
8 0
8 0
8 0
8 0
Link Remaining
Distance Buffers
--------- -----
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- - 484