EXP Computer S200 LLC2 Local Termination, Preventing session timeouts in a Bridging application

LLC2 Local Termination

LLC2 Local Termination

LLC2 Local	LLC2 Local Termination lets specific Token Ring ports generate and respond to
Termination	LLC2 polls with local acknowledgments, thereby preserving bandwidth and
	preventing session timeouts in a Bridging application.
	Local Termination, also referred to as “spoofing,” provides an efficient means for
	carrying out an LLC2 session between two SNA end stations attached to separate
	Token Ring LANs connected by a Wide Area Network (WAN).
	Additionally, Local Termination provides detailed statistics on LLC2 sessions.
LT Example
	For example, Figure 48 shows a network where running LLC2 Local Termination at
	the edge point PathBuilder S24x, 26x, and 27x switches enables spoofing from one
	side of the network to the other across multiple Token Rings.
		SNA
			FEP
	LLC2
	Keepalives/Acks

LLC2

LLC2Keepalives/Acks

Keepalives/Acks

LLC2

Keepalives/AcksLLC2

Keepalives/Acks

CC CC

Figure 48. Local Termination Example

100 Bridging