Ian Dale

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We have a single BGP published IP address range that has been provided by our ISP:<br />
<br />
BGP Advertised Public IP Range: X.X.X.X/27<br />
Local AS: TTTTTTTT<br />
Remote (ISP) AS: ZZZZ<br />
Local and Remote ASN is the same for both sites (single ISP only).<br />
<br />
Under normal conditions, we need to all traffic going to X.X.X.X/27 to be directed to site A.<br />
However, if site A is down, we need all traffic going to X.X.X.X/27 to be directed to site B.<br />
<br />
If my reading of BGP is correct, we need to setup two parameters:<br />
<br />
1) Local Preference - to handle outbound traffic flows.<br />
2) AS-PATH - to handle inbound flows.<br />
<br />
Is this correct? Or have I totally misunderstood what I've read about BGP.<br />
<br />
Regards,
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We have a single BGP published IP address range that has been provided by our ISP:

BGP Advertised Public IP Range: X.X.X.X/27
Local AS: TTTTTTTT
Remote (ISP) AS: ZZZZ
Local and Remote ASN is the same for both sites (single ISP only).

Under normal conditions, we need to all traffic going to X.X.X.X/27 to be directed to site A.
However, if site A is down, we need all traffic going to X.X.X.X/27 to be directed to site B.

If my reading of BGP is correct, we need to setup two parameters:

1) Local Preference - to handle outbound traffic flows.
2) AS-PATH - to handle inbound flows.

Is this correct? Or have I totally misunderstood what I've read about BGP.

Regards,

Configuration of BGP Backup Route

Networking software modules are interfaced with a framework implemented on the machine's operating system that implements the networking functionality of the operating system. The best known frameworks are the TCP/IP model and the OSI model. Systems typically do not use a single protocol to handle a transmission. Instead they use a set of cooperating protocols, sometimes called a protocol family or protocol suite.[9] Some of the best known protocol suites include: IPX/SPX, X.25, AX.25, AppleTalk and TCP/IP. Other protocols indirectly related to networking include the hypertext transfer protocol (HTTP) and its related technologies, Dynamic Host Configuration Protocol (DHCP), Domain Name Server (DNS) and other Internet protocols.