Vlan Stacking Packet Drop Precedence - Dell Force10 S4810P Configuration Manual

Table 44-2
C-Series and S-Series.
Table 44-2. C-Series and S-Series Behaviors for Mis-matched TPID
Network
Position
Ingress Access Point untagged
Core
Egress Access Point untagged

VLAN Stacking Packet Drop Precedence

VLAN Stacking Packet Drop Precedence
The Drop Eligible Indicator (DEI) bit in the S-Tag indicates to a service provider bridge which packets it
should prefer to drop when congested.
924
| Service Provider Bridging
details the outcome of matched and mismatched TPIDs in a VLAN-stacking network with the
Incoming System
Packet TPID TPID
0xUVWX
single-tag (0x8100) 0xUVWX
0x8100
0x81XY
untagged 0xUVWX
double-tag 0xUVWX
0xUVWX
0xUVYZ
0xQRST
0xUVWX
double-tag 0xUVWX
0xUVWX
0xUVYZ
0xQRST
Match Type
—
single-tag
mismatch
single-tag match
single-tag first-byte
match
—
double-tag match
double-tag
first-byte match
double-tag
mismatch
—
double-tag match
double-tag
first-byte match
double-tag
mismatch
is available only on platform:
Pre-8.2.1.0 8.2.1.0+
switch to default switch to default
VLAN VLAN
switch to default switch to default
VLAN VLAN
switch to VLAN switch to VLAN
switch to VLAN switch to default
VLAN
switch to default switch to default
VLAN VLAN
switch to VLAN switch to VLAN
switch to VLAN switch to default
VLAN
switch to default switch to default
VLAN VLAN
switch to default switch to default
VLAN VLAN
switch to VLAN switch to VLAN
switch to VLAN switch to default
VLAN
switch to default switch to default
VLAN VLAN
c s