Specifications

Chapter 5. IBM System Networking RackSwitch implementation 219
Linux host verification
Figure 5-12 shows the output from an ICMP test from a Linux host to a Windows host.
Figure 5-12 Linux host to Windows host verification
5.3.3 Border Gateway Protocol
Border Gateway Protocol (BGP) is not in the scope of the reference architecture
implementation of this publication. However, a summary of commands used for configuration
and verification is presented in this section.
For more information about BGP, see 2.3.5, “Border Gateway Protocol” on page 66.
BGP is an Internet protocol that enables routers on a network to share routing information
with each other and advertise information about the segments of the IP address space they
can access within their network with routers on external networks. You can use BGP to
decide what is the “best” route for a packet to take from your network to a destination on
another network, rather than setting a default route from your border routers to your upstream
providers. You can configure BGP either within an autonomous system or between different
autonomous systems. When run within an autonomous system, it is called internal BGP
(iBGP). When run between different autonomous systems, it is called external BGP (eBGP).
BGP is defined in RFC 1771 (http://www.ietf.org/rfc/rfc1771.txt).