target reassemble board

Function

The target reassemble board command configures the mapping from a tunnel interface to a GRE reassembly board so that fragments are sent to a GRE reassembly board for reassembling.

The undo target reassemble board command cancels the configuration.

By default, no mapping from a tunnel interface to a GRE reassembly board is configured.

Format

target reassemble board slot-id [ backup slave-slot-id ]

undo target reassemble board

Parameters

Parameter	Description	Value
slot-id	Specifies the number of the slot where the reassembly board resides.	-
backup slave-slot-id	Specifies the number of the slot where the slave reassembly board resides.	-

Parameter

Description

Value

slot-id

Specifies the number of the slot where the reassembly board resides.

backup slave-slot-id

Specifies the number of the slot where the slave reassembly board resides.

Views

Tunnel interface view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
forwarding	write

Usage Guidelines

Usage Scenario

In distributed GRE mode, GRE packets are encapsulated and decapsulated on their own ingress interface boards. Tunnel interfaces are numbered in the format of an integer.

In distributed GRE mode, if GRE packets are load-balanced among multiple links, there is a possibility that fragments of a packet are transmitted along multiple links. On the tunnel egress, when fragments are received through multiple interface boards, reassembling on each interface board may fail due to timeout.

To resolve this problem, run the target reassemble board command to configure the mapping from a tunnel interface to a GRE reassembly board so that fragments are sent to the reassembly board for reassembling. After that, packets can be forwarded properly.

Example

# Configure the mapping from Tunnel1 to the GRE reassembly board in 1.

<HUAWEI> system-view
[~HUAWEI] interface tunnel 1
[*HUAWEI-Tunnel1] tunnel-protocol gre
[*HUAWEI-Tunnel1] target reassemble board 1