DELL S50V User Manual

Service Provider Bridging | 967

To map C-Tag dot1p values to S-Tag dot1p values and mark the frames accordingly:

 (L2PT) is supported on platforms: 

c e s

L2PT is supported on E-Series ExaScale 

e

x

 with FTOS 8.2.1.0. and later.

Spanning Tree BPDUs use a reserved destination MAC address called the Bridge Group Address, which is 
01-80-C2-00-00-00. Only spanning-tree bridges on the LAN recognize this address and process the BPDU. 
When VLAN stacking is used to connect physically separate regions of a network, BPDUs attempting to 
traverse the intermediate network might be consumed and subsequently dropped because the intermediate 
network itself might be using Spanning Tree (

1

Allocate CAM space to enable queuing 
frames according to the C-Tag or the 
S-Tag.

: mark the S-Tag dot1p and 

queue the frame according to the original 
C-Tag dot1p. This method requires half as 
many CAM entries as 

.

: mark the S-Tag dot1p 

and queue the frame according to the 
S-Tag dot1p. This method requires twice 
as many CAM entries as 

 and 

FP blocks in multiples of 2.

cam-acl l2acl number

 

 

 

 

 

 

 

 

 

 

 

 

 

ecfmacl number

 {

 | 

} 

Default: 0 FP blocks for vman-qos and 
vman-qos-dual-fp

CONFIGURATION

2

The new CAM configuration is stored in 
NVRAM and takes effect only after a save 
and reload.

EXEC Privilege

3

Map C-Tag dot1p values to a S-Tag dot1p 
value. C-Tag values may be separated by 
commas, and dashed ranges are permitted. 
Dynamic Mode CoS overrides any Layer 2 
QoS configuration in case of conflicts.

 

 

 

INTERFACE

Note: Since 

 marks and queues packets, the only remaining applicable QoS configuration 

is rate metering. You may use Rate Shaping or Rate Policing.