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Clearing unused 16-bit interface indexes, Verifying and diagnosing transceiver modules, Verifying transceiver modules – H3C Technologies H3C SecPath F1000-E User Manual

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Clearing unused 16-bit interface indexes

The firewall must maintain persistent 16-bit interface indexes and keep one interface index match one
interface name for network management. After deleting a logical interface, the firewall retains its 16-bit

interface index so the same index can be assigned to the interface at interface re-creation.
To avoid index depletion causing interface creation failures, you can clear all 16-bit indexes that have

been assigned but not in use. The operation does not affect the indexes of the interfaces that have been
created but the indexes assigned to re-recreated interfaces might change.
A confirmation is required when you execute this command. The command does not run if you fail to

make a confirmation within 30 seconds or enter N to cancel the operation.
To clear unused 16-bit interface indexes, perform the following task in user view:

Task Command

Clear unused 16-bit interface
indexes.

reset unused porttag

Verifying and diagnosing transceiver modules

Table 15

lists of the commonly used transceiver modules. They can be further divided into fiber

transceiver modules and copper transceiver modules based on transmission medium.

Table 15 Commonly used transceiver modules

Transceiver type

Application

environment

Whether can be an

optical transceiver

Whether can be an

electrical transceiver

SFP (Small Form-factor
Pluggable)

Generally used for
100M/1000M Ethernet

interfaces or POS
155M/622M/2.5G

interfaces

Yes Yes

SFP+(Enhanced 8.5 and
10 Gigabit Small

Form-factor Pluggable)

Generally used for 10G
Ethernet interfaces

Yes Yes

GBIC (Gigabit Interface
Converter)

Generally used for
1000M Ethernet

interfaces

Yes Yes

XFP (10-Gigabit small
Form-factor Pluggable)

Generally used for 10G
Ethernet interfaces

Yes No

XENPAK (10-Gigabit
Ethernet Transceiver
Package)

Generally used for 10G
Ethernet interfaces

Yes Yes

Verifying transceiver modules

You can verify the genuineness of a transceiver module in the following ways: