44
Service Provider Bridging
Service provider bridging is composed of virtual local area network (VLAN) Stacking, Layer 2 Protocol Tunneling, and
Provider Backbone Bridging as described in the
FTOS Configuration Guide Service Provider Bridging
chapter.
This chapter includes command line information (CLI) for the Dell Force10 operating software (FTOS) Layer 2 Protocol
Tunneling (L2PT). L2PT enables protocols to tunnel through an 802.1q tunnel.
L2PT is supported by FTOS on the C-Series, E-Series, S-Series, Z-Series, or S4810 Dell Force10 systems. L2PT is
supported on E-Series ExaScale with FTOS 8.2.1.0. and later.
For more information, refer to
VLAN Stacking
,
Spanning Tree Protocol (STP)
, and
GARP VLAN Registration (GVRP)
.
Important Points to Remember
•
L2PT is enabled at the interface VLAN-Stack VLAN level. For more information about Stackable VLAN (VLAN-
Stacking) commands, refer to
VLAN Stacking
.
•
The default behavior is to disable protocol packet tunneling through the 802.1q tunnel.
•
Rate-limiting is required to protect against bridge protocol data units (BPDU) attacks.
•
A port channel (including through link aggregation control protocol [LACP]) can be configured as a VLAN-Stack
access or trunk port.
•
Address resolution protocol (ARP) packets work as expected across the tunnel.
•
Far-end failure detection (FEFD) works the same as with Layer 2 links.
•
Protocols that use Multicast MAC addresses (for example, open shortest path first [OSPF]) work as expected
and carry over to the other end of the VLAN-Stack VLAN.
debug protocol-tunnel
Enable debugging to ensure incoming packets are received and rewritten to a new MAC address.
C-Series, E-Series, S-Series, Z-Series, S4810
Syntax
debug protocol-tunnel interface {in | out | both} [vlan
vlan-
id
] [count
value
]
To disable debugging, use the
no debug protocol-tunnel interface {in |
out | both} [vlan
vlan-id
] [count
value
]
command.
Parameters
interface
Enter one of the following interfaces and slot/port information:
•
For a Fast Ethernet interface, enter the keyword
FastEthernet
followed by the slot/port information.
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Summary of Contents for Force10 Z9000
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