Red Hat NETSCAPE MANAGEMENT SYSTEM 4.5 - COMMAND-LINE Guía de usuario Pagina 125

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5 – Managing Ports
Configuring Ports
59056-00 Rev. B 5-13
D
5.2.4
Changing Interoperability Credits
SANbox switches negotiate with other switches to resolve differences in the
number of port buffer credits (on 1Gbps/2Gbps ports only). However, certain
non-FC-SW-2-compliant switches do not negotiate and will isolate when
connected. To remedy this situation, disconnect the switches, then reconfigure the
SANbox E_Port to match the number of port buffer credits on the other switch.
To change interoperability credits to permit operation with non-compliant switches,
do the following:
1. Determine the number of credits per port for the non-compliant switch:
If the credits per port is equal to 16, stop here – no changes are
needed.
If the credits per port is less than 16, proceed to step 2.
If the credits per port is greater than 16, you must extend credits for the
affected SANbox port to increase the number of credits to match that
of the non-standard switch. This is possible only for 1Gbps/2Gbps
ports. Refer to ”Extending Port Credits” on page 5-14.
2. Select the SANbox switch ports in the faceplate display that are to serve as
links to the non-compliant switch.
3. Open the Port menu and select Port Properties 1G/2G.
4. In the Interop Credits field, enter the number of credits per port of the
non-compliant switch and click the OK button.
5. Connect the switches.
Note: Changing interoperability credits is necessary only for E_Ports that are
connected to non-FC-SW-2-compliant switches. Contact your
authorized maintenance provider for assistance in using this feature.
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