D-Link DI-1750 Reference Manual page 278

Model Name
route-map set-community 20 permit
match as-path test2
!
ip aspath-list test1 permit 70$
ip aspath-list test2 permit .*
In the third example, we will set MED of a route from neighbor 171.69l.232.55 and set local priority
according to community attribute value of this route. Those MEDs of routes matching community list
com1 will be configured to be 8000. These routes maybe have other attributes.
The local priorities of routes transmitting community list com2 are configured to be 500.
The local priorities of other routes are cofigured to be 50. Therefore local priorities of the left routes of
neighbor 171.69.232.55 are 50.
router bgp 200
neighbor 171.69.232.55 remote-as 100
neighbor 171.69.232.55 route-map filter-on-community in
!
route-map filter-on-community 10 permit
match community com1
set metric 8000
!
route-map filter-on-community 20 permit
match community com2
set local-preference 500
!
route-map filter-on-community 30 permit
set local-preference 50
!
ip community-list com1 permit 100 200 300
ip community-list com1 permit 900 901
!
ip community-list com2 permit 88
ip community-list com2 permit 90
!
6.13 Configure RSVP
This chapter describes how to configure Resource Reservation Protocol (RSVP), which is an IP service
that allows end systems or hosts on either side of a router network to establish a reserved-bandwidth
path between them to predetermine and ensure QoS for their data transmission.
For a complete description of the RSVP commands in this chapter, refer to the "RSVP Command" of IP
Command Reference. To locate documentation of other commands that appear in this chapter, use the
command reference master index, or search online.
It is helpful for users to acquaint RSVP at first before configuring RSVP. RSVP allows end systems to
request Quality of Service (QOS) guarantees for data flow of an application. RSVP also can be used by
router to transfer QOS request and to create and maintain state for actual reservation. RSVP request
will create reservation on every node of data passage.
RSVP request aims at half-duplex data flow, so RSVP will distinguish the data sender and the data
receiver in logic in spite that sender and receiver are the same application. RSVP stands higher than IP
in the whole protocol cluster. It doesn't transmit datas, but it belongs to internet control protocol just like
ICMP, IGMP or Routing Protocol. RSVP implementation functions on background as routing protocol or
Management protocol.
RSVP per se is not routing protocol although it can meet current and futual routing protocol. Routing
protocol decides data packets how to forward and RSVP only cares QoS of those data packets
forwarded according to route.
RSVP functions accordant with WFQ (Weighted Fair Queuing) or RED (Random Early Detection). This
accordance is concerned with two primary concepts: using of RSVP point-to-point flow and using of
session between WFQ routers.
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