380
C
HAPTER
37: IP R
OUTING
P
OLICY
C
ONFIGURATION
Defining if-match Clauses for a Route-Policy Node
An
if-match
clause defines a matching rule, that is, a filtering condition that the
routing information should satisfy for passing the current route-policy node. The
matching objects are some attributes of routing information.
By default, no
if-match
clause is defined.
n
■
The relationship among the
if-match
clauses in a route-policy node is logical
“AND”. That is, a piece of route information can pass the filter of a node and
the actions in
apply
clauses will be taken on it only when all the matching
conditions specified by the
if-match
clauses in the node are satisfied.
■
If no
if-match
clause is defined for a node, all routing information will pass the
filter of the node.
Defining apply Clauses for a Route-Policy Node
apply
clauses in a node specify the actions performed after all the filtering
conditions of the
if-match clauses
in the node are satisfied. The actions include
modifying the attributes of routing information.
Table 309
Define if-match clauses
Operation Command
Description
Enter system view
system-view
-
Enter route-policy view
route-policy
route-policy-name
{
permit
|
deny
}
node
node-number
-
Define a rule to match the AS path field
of BGP routing information
if-match as-path
as-number-list
Optional
Define a rule to match the community
attribute of BGP routing information
if-match
community
{
basic-community
-number
[
whole-match
] |
adv-community-number
}
Optional
Define a rule to match the destination
IP address of routing information
if-match
{
acl
acl-number
|
ip-prefix
ip-prefix-name
}
Optional
Define a rule to match the next-hop
interface of routing information
if-match interface
interface-type
interface-number
Optional
Define a rule to match the next-hop
address of routing information
if-match ip next-hop
{
acl
acl-number
|
ip-prefix
ip-prefix-name
}
Optional
Define a rule to match the routing cost
of routing information
if-match cost
value
Optional
Define a rule to match the tag field of
RIP or OSPF routing information
if-match tag
value
Optional
Table 310
Define apply clauses
Operation Command Description
Enter system view
system-view
-
Enter route-policy view
route-policy
route-policy-name
{
permit
|
deny
}
node
node-number
-
Define an action to add AS
numbers before AS path of
BGP routing information
apply as-path
as-number-1
[
as-number-2
[
as-number-3
... ] ]
Optional
Summary of Contents for Switch 7754
Page 32: ...32 CHAPTER 1 CLI OVERVIEW ...
Page 70: ...70 CHAPTER 5 LOGGING IN USING MODEM ...
Page 76: ...76 CHAPTER 7 LOGGING IN THROUGH NMS ...
Page 86: ...86 CHAPTER 9 CONFIGURATION FILE MANAGEMENT ...
Page 120: ...120 CHAPTER 13 ISOLATE USER VLAN CONFIGURATION ...
Page 126: ...126 CHAPTER 14 SUPER VLAN ...
Page 136: ...136 CHAPTER 16 IP PERFORMANCE CONFIGURATION ...
Page 152: ...152 CHAPTER 17 IPX CONFIGURATION ...
Page 164: ...164 CHAPTER 19 QINQ CONFIGURATION ...
Page 172: ...172 CHAPTER 21 SHARED VLAN CONFIGURATION ...
Page 182: ...182 CHAPTER 22 PORT BASIC CONFIGURATION ...
Page 198: ...198 CHAPTER 24 PORT ISOLATION CONFIGURATION ...
Page 208: ...208 CHAPTER 25 PORT SECURITY CONFIGURATION ...
Page 224: ...224 CHAPTER 27 DLDP CONFIGURATION ...
Page 232: ...232 CHAPTER 28 MAC ADDRESS TABLE MANAGEMENT ...
Page 240: ...240 CHAPTER 29 CENTRALIZED MAC ADDRESS AUTHENTICATION CONFIGURATION ...
Page 280: ...280 CHAPTER 30 MSTP CONFIGURATION ...
Page 348: ...348 CHAPTER 35 IS IS CONFIGURATION ...
Page 408: ...408 CHAPTER 39 802 1X CONFIGURATION ...
Page 412: ...412 CHAPTER 40 HABP CONFIGURATION ...
Page 422: ...422 CHAPTER 41 MULTICAST OVERVIEW ...
Page 426: ...426 CHAPTER 42 GMRP CONFIGURATION ...
Page 480: ...480 CHAPTER 47 PIM CONFIGURATION ...
Page 506: ...506 CHAPTER 48 MSDP CONFIGURATION ...
Page 552: ...552 CHAPTER 51 TRAFFIC ACCOUNTING CONFIGURATION ...
Page 570: ...570 CHAPTER 53 HA CONFIGURATION ...
Page 582: ...582 CHAPTER 54 ARP CONFIGURATION SwitchA arp protective down recover interval 200 ...
Page 622: ...622 CHAPTER 58 DHCP RELAY AGENT CONFIGURATION ...
Page 684: ...684 CHAPTER 61 QOS CONFIGURATION ...
Page 718: ...718 CHAPTER 63 CLUSTER ...
Page 738: ...738 CHAPTER 67 UDP HELPER CONFIGURATION ...
Page 752: ...752 CHAPTER 69 RMON CONFIGURATION ...
Page 772: ...772 CHAPTER 70 NTP CONFIGURATION ...
Page 796: ...796 CHAPTER 72 FILE SYSTEM MANAGEMENT ...
Page 802: ...802 CHAPTER 73 BIMS CONFIGURATION ...
Page 814: ...814 CHAPTER 74 FTP AND TFTP CONFIGURATION ...
Page 830: ...830 CHAPTER 75 INFORMATION CENTER ...
Page 836: ...836 CHAPTER 76 DNS CONFIGURATION ...
Page 852: ...852 CHAPTER 77 BOOTROM AND HOST SOFTWARE LOADING ...
Page 858: ...858 CHAPTER 78 BASIC SYSTEM CONFIGURATION DEBUGGING ...