11-16
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
OL-8978-04
Chapter 11 Configuring VLANs
Configuring VLAN Mappings on a Per-Port or Per-ASIC Basis
Tip Before designing your spanning-tree topology, you should take into account the way in which VLANs
are merged. You should clear the source VLAN from the port on which VLAN mapping is enabled and
clear the translated VLAN from the neighboring end. Doing this ensures that the source VLAN of the
customer port and the translated VLAN of the provider port are merged.
Table 11-2 Per-Module Port ASIC VLAN Mapping Capabilities
Module
Maximum Number of Per-Port
VLAN Mappings Supported Capabilities/Limitations
WS-X6548-RJ-45
WS-X6548-RJ-21
WS-X6148X2-RJ-45
WS-X6148X2-45AF
WS-X6196-RJ-21
1
1. WS-X6196-RJ-21 does not have per-ASIC VLAN mapping. VLAN mapping is per-two ASICs: Ports 1 through 96 (instead of only 48 ports per ASIC).
32 Per-ASIC VLAN mapping. Mapping
can be enabled or disabled on a per-port
basis on ISL trunks. Mapping is always
on for 802.1Q trunks and there is no
way to disable it. Mapping is supported
for ISL and 802.1Q trunks.
WS-X6K-S2U-MSFC2
WS-X6K-S2-MSFC2
WS-X6K-S2-PFC2
WS-SUP720-3B
WS-SUP720-3BXL
WS-SUP720
WS-X6516A-GBIC
2
WS-X6516-GE-TX
2. WS-X6516A-GBIC does not have per-ASIC VLAN mapping. VLAN mapping is per-two ASICs: Ports 1 through 8 and ports 9 through 16 (instead of only
4 ports per ASIC).
32 Per-ASIC VLAN mapping. Mapping
can be enabled or disabled on
individual ports in the ASIC. Supports
any-to-any type of VLAN translation.
Supported only on 802.1Q trunks.
3
3. The ASICs in these modules have the following limitation: When dot1q-all-tagged is disabled, VLAN translation does not occur for packets transmitted
on the native VLAN.
WS-X6748-SFP
4
WS-X6724-SFP
WS-X6748-GE-TX
128 Per-ASIC VLAN mapping. Mapping
can be enabled or disabled on
individual ports in the ASIC. Supports
any-to-any type of VLAN translation.
Mapping is supported for ISL and
802.1Q trunks.
WS-X6148A-GE-TX
WS-X6148A-GE-45A
WS-X6148-FE-SFP
WS-X6148A-RJ-45
WS-X6148A-45AF
WS-X6704-10GE
5
8 Per-port VLAN mapping. Supports
any-to-any type of VLAN translation.
Mapping is supported for ISL and
802.1Q trunks.
WS-X6502-10GE
16 Per-port VLAN mapping. Supports
any-to-any type of VLAN translation.
Supported only on 802.1Q trunks.
WS-SUP32-GE-3B
16 Per-port VLAN mapping. Supports
any-to-any type of VLAN translation.
Mapping is supported for ISL and
802.1Q trunks.
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