Routing Policy Features Supported By The Ne80E/40E - Huawei Quidway NetEngine80E Configuration Manual

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
Routing policy
Based on the control plane and serves
the routing protocol and routing table.
Combines with the routing protocol

10.1.2 Routing Policy Features Supported by the NE80E/40E

When configuring routing policies, you can use these filters: ACL, IP prefix list, AS-Path filter,
community filter, extended community filter, RD filter, and Route-Policy.
Filters
The NE80E/40E provides several types of filters for routing protocols, such as Access Control
Lists (ACLs), IP prefix lists, AS-Path filters, community filters, extended community filters
(Extcommunity-filters), and Route-Policies.
l
l
l
l
Issue 02 (2014-09-30)
ACL
The ACL consists of the ACL for IPv4 packets and the ACL for IPv6 packets. According
to the usage, ACLs are classified into three types, that is, interface-based ACLs, basic
ACLs, and advanced ACLs. When defining an ACL, you can specify the IP address and
subnet range to match the destination network segment address or the next hop address of
a route.
For details of the ACL configuration, refer to the HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Services.
IP-Prefix List
The IP-prefix list consists of IPv4 prefix list and IPv6 prefix list. The implementation of
the IP-prefix is flexible.
An IP-prefix list is identified by its list name. Each prefix list includes multiple entries.
Each entry can independently specify the matching range in the form of the network prefix.
The matching range is identified by an index number that designates the sequence of the
matching check.
During the matching, the router checks entries identified by index numbers in an ascending
order. When a route matches an entry, the system does not search the next entry matching
the route. For the detailed configuration, refer to
AS-Path Filter
Border Gateway Protocol (BGP) routing information packet includes an autonomous
system (AS) path domain. The AS-Path filter specifies the matching condition for the AS
path domain.
For the configuration of AS-Path filter, refer to
Community Filter
The community filter is used only in BGP. The BGP routing information includes a
community attribute domain. It is used to identify a community. The community filter
specifies the matching condition for the community attribute domain.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
10 Routing Policy Configuration
Policy-based routing
Based on forwarding plane and serves for the
forwarding policy.
Needs to be manually configured hop by hop to
ensure that the packet is forwarded through the
policy.
Configuring the IP-Prefix
BGP Configuration.
List.
1195