Retransmitting method of supporting policy routing and device thereof
A forwarding method and routing technology, applied in the communication field, can solve problems such as inconsistent route selection and complex ACL matching relationship, and achieve the effects of simplifying the matching process, improving business processing performance, and simplifying user configuration
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Embodiment 1
[0052] figure 2 It is a flowchart of a forwarding method supporting policy routing in Embodiment 1 of the present invention. like figure 2 As shown, the process includes the following steps:
[0053] Step 201: When configuring the policy routing, assign a next hop code, that is, a next hop ID, to the next hop information of the policy routing.
[0054] Since the outgoing VLAN has only less than 2 bytes, it is not enough to accommodate the next hop information, so this embodiment assigns an ID for the next hop information, and uses a shorter ID to represent longer information content, so that the next hop information can be accommodated in the outgoing VLAN. within the limited space of the VLAN field.
[0055] Step 202: Synchronize the corresponding relationship between the next hop information and the next hop ID to the relevant interface board and NAT service board.
[0056] Specifically, this step is: deliver the corresponding relationship of the next hop information o...
Embodiment 2
[0071] In the first embodiment above, the service board needs to store the corresponding relationship. Since the complete next-hop information is relatively long, the storage burden of the service board is increased. Preferably, in order to reduce the storage burden of the service board, it is not possible to directly configure the correspondence between the next hop information and the next hop ID, but to configure the correspondence between the next hop IP corresponding to the next hop information and the next hop ID relationship, and synchronize the corresponding relationship between IP and ID to the service board, so that the service board only needs to save the IP address and does not need to save the long next-hop information. IP searches the forwarding table, and the next hop information can be obtained, so as to realize forwarding.
[0072] image 3 It is a flowchart of a forwarding method supporting policy routing in Embodiment 2 of the present invention. like ima...
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