Reference Guide

NOTE
The configured number of buffers for a given port is stored in the configuration database and is persistent across
reboots. The F_Port buffer feature does not support EX_Port, Long-Distance, L_Port, FastWrite, QoS, and Trunk Area
enabled ports. F_Port Buffers are mutually exclusive to E_Port Credits
Monitoring buffers in a port group
Use the portBufferShow command to monitor the remaining buffers on a long-distance link and to monitor the average frame size and
average buffer usage for a given port.
1. Connect to the switch and log in using an account assigned to the admin role.
2. Enter the portBufferShow command.
The average frame size in bytes is shown in parentheses with the average buffer usage for packet transmission and reception.
switch:admin> portbuffershow
User Port Lx Max/Resv Avg Buffer Usage & FrameSize Buffer Needed Link Remaining
Port Type Mode Buffers Tx Rx Usage Buffers Distance Buffers
---- ---- ---- ------- ---------------------------- ------ ------- --------- ----------
0 - 34 - ( - ) - ( - ) 0 - -
1 F - 20 - ( - ) - ( - ) 8 - -
2 E - 20 - ( - ) - ( - ) 26 26 <2km
3 E - 20 - ( - ) - ( - ) 34 34 <2km
4 F - 48 - ( - ) - ( - ) 48 - -
5 F - 48 - ( - ) - ( - ) 48 - -
6 F - 48 - ( - ) - ( - ) 48 - -
7 F - 48 - ( - ) - ( - ) 48 - -
8 E LS 1634 - ( - ) - ( - ) 1634 1634 100km
9 - 20 - ( - ) - ( - ) 0 - -
10 E - 34 - ( - ) - ( - ) 8 8 <2km
11 - 20 - ( - ) - ( - ) 0 - -
12 - 20 - ( - ) - ( - ) 0 - -
13 - 20 - ( - ) - ( - ) 0 - -
14 - 20 - ( - ) - ( - ) 0 - -
15 - 20 - ( - ) - ( - ) 0 - -
16 - 20 - ( - ) - ( - ) 0 - -
17 - 20 - ( - ) - ( - ) 0 - -
18 - 20 - ( - ) - ( - ) 0 - -
19 - 20 - ( - ) - ( - ) 0 - -
20 - 20 - ( - ) - ( - ) 0 - -
21 - 20 - ( - ) - ( - ) 0 - -
22 - 20 - ( - ) - ( - ) 0 - -
23 - 20 - ( - ) - ( - ) 0 - -
24 - 20 - ( - ) - ( - ) 0 - -
25 - 20 - ( - ) - ( - ) 0 - -
26 - 20 - ( - ) - ( - ) 0 - -
27 - 20 - ( - ) - ( - ) 0 - -
28 - 20 - ( - ) - ( - ) 0 - -
29 - 20 - ( - ) - ( - ) 0 - -
32 - 20 - ( - ) - ( - ) 0 - -
33 - 20 - ( - ) - ( - ) 0 - -
34 - 20 - ( - ) - ( - ) 0 - -
35 - 20 - ( - ) - ( - ) 0 - -
36 - 20 - ( - ) - ( - ) 0 - -
37 - 20 - ( - ) - ( - ) 0 - -
38 - 20 - ( - ) - ( - ) 0 - -
39 - 20 - ( - ) - ( - ) 0 - -
40 - 20 - ( - ) - ( - ) 0 - -
41 - 20 - ( - ) - ( - ) 0 - -
42 - 20 - ( - ) - ( - ) 0 - -
43 - 20 - ( - ) - ( - ) 0 - -
44 - 20 - ( - ) - ( - ) 0 - -
45 - 20 - ( - ) - ( - ) 0 - -
46 - 20 - ( - ) - ( - ) 0 - -
47 E - 20 - ( - ) - ( - ) 26 26 <2km
48 - 20 - ( - ) - ( - ) 0 - -
Buffer-to-Buffer Credits and Credit Recovery
Brocade Fabric OS Administration Guide, 8.0.1
134 53-1004111-02