EXP Computer S200 manual LLC2 Local Termination, LT Example

Bridging Features and Capabilities

LLC2 Local Termination

LLC2 Local	PathBuilder S200 series switch support includes LLC2 Local Termination for your
Termination	Bridging operations when passing SNA/SDLC data traffic. LLC2 Local Termination
	lets specific Token Ring ports generate and respond to LLC2 polls with local
	acknowledgments, thereby preserving bandwidth and preventing session timeouts.
	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
	Figure 7 shows a network where running LLC2 Local Termination at the edge point
	PathBuilder S200 series 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 7. Local Termination Example

For More Details... See“LLC2 Local Termination” section on page 100 in this guide.

10 Bridging