宽带远程接入服务器冗余热备份技术在IP城域网中的应用

doi:10.3969／j.issn.1000-0801.2013.09.026

Abstract

Abstract:

Based on analyzing the present situation of the Xuzhou metropolitan area network, the redundancy and standby technology to solve the single points of failure for BRAS was presented and a detailed scheme was designed. The information synchronization between main and standby BRAS and redirect for the flow guide based on tunnel technology were used to realize seamless switching between main and standby BRAS. Even the BRAS and its link failed, the broadband was in normal use.

Key words: broadband remote access server, redundancy, standby, VRRP, BFD

Xianfeng Wang,Tao Liu. Application of Redundancy and Standby Technology for BRAS in the Metropolitan Area Network[J]. Telecommunications Science, 2013, 29(9): 132-136.

ME60-1／2链路	主ME60	备用设备ID	VRRP ID	RBP名称	peer BFD名称	下行交换机
G3／0／1	ME60-1	1	1	RBP301	GE301peer	T64G-1
G3／0／3	ME60-1	2	2	RBP303	GE303peer	T64G-1
G3／0／4	ME60-2	3	3	RBP304	GE304peer	T64G-2
G3／0／5	ME60-2	4	4	RBP305	GE305peer	T64G-2

设备	物理口	子接口	VRRP ID	VLAN	优先级	跟踪peer BFD
ME60-1	G3／0／1	GE3／0／1.4000	1	4000	150	GE301peer
ME60-1	G3／0／3	GE3／0／3.4000	2	4000	150	GE303peer
ME60-1	G3／0／4	GE3／0／4.4000	3	4000	100	GE304peer
ME60-1	G3／0／5	GE3／0／5.4000	4	4000	100	GE305peer
ME60-2	G3／0／1	GE3／0／1.4000	1	4000	100	GE301peer
ME60-2	G3／0／3	GE3／0／3.4000	2	4000	100	GE303peer
ME60-2	G3／0／4	GE3／0／4.4000	3	4000	150	GE304peer
ME60-2	G3／0／5	GE3／0／5.4000	4	4000	150	GE305peer

设备	BFD名称	本地设备ID	远程设备ID	对端可达的接口IP地址	类型
ME60-1	GE301peer	1	1	192.168.11.2	peer
ME60-1	GE303peer	2	2	192.168.11.8	peer
ME60-1	GE304peer	3	3	192.168.11.32	peer
ME60-1	GE305peer	4	4	192.168.11.38	peer
ME60-2	GE301peer	1	1	192.168.11.1	peer
ME60-2	GE303peer	2	2	192.168.11.7	peer
ME60-2	GE304peer	3	3	192.168.11.31	peer
ME60-2	GE305peer	4	4	192.168.11.37	peer

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Application of Redundancy and Standby Technology for BRAS in the Metropolitan Area Network

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