Introduction to SNA Capabilities of Tandem NonStop Systems

Connections
Introduction to SNA Capabilities of Tandem NonStop Systems–134597
3-3
Types of Connections
Types of Connections
SNAX access methods allow Tandem systems to be connected to SNA nodes using a
variety of connections, as shown in Table 3-2.
Table 3-3
shows the connections supported by each SNAX access method and
corequisite products, where necessary.
Managing Switched Connections
SNAX Connection Manager (SNAX/CM) software, provided with SNAX/XF, allows
interactive or programmatic management of X.25 SVCs and Token-Ring connections.
Electrical Interfaces
SDLC and X.25 can run over several types of electrical interfaces. Table 3-4 shows the
electrical interfaces supported by each SNAX access method.
Table 3-2. Types of Connections
Type Maximum Speed Range
Synchronous Data Link Control (SDLC) line 256 kilobits/sec Local or wide area
X.25 packet-switched network 64 kilobits/sec Wide area
Token-Ring network (note) 16 megabits/sec Local area
Note. Token-Ring connections are not supported in the G01.00 release.
Table 3-3. Connections Supported by Each SNAX Access Method
Type of Connection SNAX/XF SNAX/APN SNAX/CDF (note 1)
SDLC nonswitched
(leased) line
Yes Yes Yes
(using EnvoyACP/XF)
SDLC switched line Yes Yes No
X.25 PVC Yes
(using X25AM)
Yes
(using X25AM)
No
X.25 SVC Yes
(using X25AM)
No No
Token-Ring (note 2) Yes
(using TLAM)
Yes
(using TLAM)
No
Note.
1. SNAX/CDF is only available on K-series servers.
2. Token-Ring connections are not supported in the G01.00 release.