The iTN2100-2IGC is a 2-way 1000 Mbit/s Ethernet service access card, which must be
used together with the iTN2100-PTU-4GE to implement switching.
Provide two groups of GE interfaces (Combo interface, an optical interface and an
electrical interface in each group) for service access.
Support detection of dual-switching cards when working on the iTN2100 and support
cooperation with dual-switching cards.
Support selection of service channels on the backplane when working on the iTN2100.
Support saving, querying, and displaying manufacturing information.
Support management and maintenance of the SFP optical modules.
Support configuration and management of Ethernet optical interfaces.
Support saving and recovering configurations of a card, and preconfigurations of a card.
Support online software upgrade for the card.
Support hot swapping.