114
MES3000 Ethernet switch series
show ethernet cfm statistics
domain
domain_name
service
{vlan-id
vlan_id
|
name
name
|
number
number
}
domain_name: (0..32)
characters;
vlan_id: (1..4094)
name: (0..45)
characters;
number: (0..65535)
Show CFM statistics for the specific domain.
show ethernet cfm statistics
mpid
id
id: (1..8191)
Show CFM statistics for the specific maintenance end point (MEP).
5.15.12
Layer 2 Protocol Tunneling (L2PT) function configuration
Layer 2 Protocol Tunneling (L2PT) allows forwarding L2-Protocol PDU through a service provider
network, that provides transparent connection between client segments of the network.
L2PT encapsulates PDU on boundary switch, transmits to another boundary switch, which expect
and decapsulate them . It allows users to transmit Level 2 data through the service provider network.
MES3000 allows encapsulating of PDU in STP, LACP, LLDP, IS-IS protocols.
Example
When L2PT is enabled for STP, switches A, B, C and D are combined in one spanning tree, despite
the fact that switch A is not connected to the switches B, C and D directly (Fig. 24). Information about
changing in the topology of the network can be transmitted through the service provider network.
Fig. 24 - Example
Function algorithm:
Encapsulation
1.
All L2 PDU are intercepted on CPU;
2.
Subsystem L2PT defines L2 protocol and checks whether l2protocol-tunnel setting is enabled
on the transmitting port or not.
If setting is enabled: