Configuring Port Rx Bb_Credits - McDATA 316095-B21 - StorageWorks Edge Switch 2/24 User Manual

Configuring Port Rx
BB_Credits
Use the Rx BB Credit page to configure the BB_Credit allocation for
ports on the product. For each type of port, there is a maximum and
minimum BB_Credit limit which is displayed as a range. For a
detailed explanation of BB_Credits, see the McDATA Products in a
SAN Environment Planning Manual (620-000124).
The Rx BB Credit page contains a list of ports and their corresponding
BB_Credits value and other values. For some products, the page also
contains a Buffer Pool Status section. Some products have a predefined
pool of BB_Credits, which is shared by all of the product's ports. This
pool is defined by the maximum number of BB_Credits that can be
assigned on the product. You cannot assign more BB_Credits than the
number of BB_Credits in the pool. The Buffer Pool Status section
provides the following information:
• Maximum Buffer—The maximum number of BB_Credits in the
buffer pool. This value is determined by the type of product.
• Allocated Buffers—The number of BB_Credits in the buffer pool
that have already been assigned to all ports on the product.
• Unallocated Buffers—The number of BB_Credits in the buffer
pool that have not been assigned to any ports and are available
for assignment.
For information about how BB_Credits are assigned on your product,
see the product's Installation and Service Manual.
Use the following procedure to configure BB_Credits values for ports:
1. If you are setting BB_Credit values for all ports, set the product
offline. To set the product offline, clear the Switch Online check
box on the Configure menu.
If you are configuring individual ports, set them offline by
blocking them, as described in
on page 3-2.
NOTE: If a port is online, you are not able to change its BB_Credit value;
the RX BB Credit field is not enabled.
2. Select Configure > Ports > Rx BB Credit on the navigation panel.
The Rx BB Credit page
Configuring Basic Port Information
(Figure 3-2 on page 3-6) displays.
Configuring the Product
Configuring Ports
3
3-5