H3C Technologies H3C S7500E Series Switches - Manual (Page 177)

5-32
Figure 5-14 Network diagram of a fully meshed network
To avoid this, you can configure some interfaces as a mesh group or/and configure the blocked
interfaces.
z After receiving an LSP, a member interface in a mesh group floods it out the interfaces that does
not belong to the mesh group.
z If an interface is blocked, it does not send LSPs unless the neighbor sends LSP requests to it.
Before configuring this task, you need to consider redundancy for interfaces to avoid the fact that LSP
packets cannot be flooded due to link failures.
Follow these steps to add an interface into a mesh group and block an interface:
To do… Use the command… Remarks
Enter system view system-view ––
Enter interface view
interface interface-type
interface-number
––
Add the interface to a mesh group
isis mesh-group
mesh-group-number
Block the interface isis mesh-group mesh-blocked
Required to choose either.
By default, the interface neither
belongs to any mesh group nor is
blocked.
The mesh group feature takes effect only on P2P interfaces.