Administrator Guide

Figure 119. Single and Double-Tag TPID Mismatch
The following table details the outcome of matched and mismatched TPIDs in a VLAN-stacking network.
Table 79. Behaviors for Mismatched TPID
Network Position Incoming Packet TPID System TPID Match Type 9.1(1.0)
Ingress Access Point untagged 0xUVWX — switch to default VLAN
single-tag (0x8100) 0xUVWX single-tag mismatch switch to default VLAN
0x8100 single-tag match switch to VLAN
0x81XY single-tag rst-byte
match
switch to default VLAN
Core untagged 0xUVWX — switch to default VLAN
double-tag 0xUVWX 0xUVWX double-tag match switch to VLAN
Service Provider Bridging 837