Rewrote part of H3C's NasPortToIfIndex subroutine to fix behaviour fo…

[bmp96]

…r stacked Comware v7 switches

Description

Fix NAS-Port translation to ifIndex in Comware v7 stacked switches rewriting H3C's NasPortToIfIndex and overriding it.

# For Switch slot 2/0/5 with VLAN 510:
# VLAN ID are last 3 nibbles ────────────────┐
# Port is next 2 nibbles    ────────────┐    │
# Subslot is next 1 nibble ──────────┐  │    │
# Slot is next 2 nibbles  ───────┐   │  │    │
# Example: 33575422 --to hex--> (02)(0)(05)(1FE)

Impacts

Comware_v7.pm is now overriding H3C.pm's NasPortToIfIndex subroutine. ifIndex calculation logic has been changed based in issue's #8057 description.

Issue

fixes #8057

Delete branch after merge

YES

Bug Fixes

• Wrong NAS-Port translation for stacked Comware v7 switches (#8057)

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