Introduction
X.25 is an International Telecommunication Union-Telecommunication Standardization Sector (ITU-T) protocol standard for WAN communications that defines how connections between user devices and network devices are established and maintained. It is typically used in the packet-switched networks (PSNs) of common carriers, such as the telephone companies.
Local switching (available in Cisco IOS® Software Release 11.1 and later) allows a single router to provide media conversion between Synchronous Data Link Control (SDLC) and Token Ring and between Qualified Logical Link Control (QLLC) and LAN. This is useful in environments that need simplified Systems Network Architecture (SNA) network design and improved availability.
Network Diagram
Configurations
| x25-1 |
!
interface Serial0
ip address 10.0.0.2 255.255.255.240
no ip mroute-cache
encapsulation x25
bandwidth 64
x25 address 1234
x25 map ip 10.0.0.1 4321 broadcast
!
|
| x25-2 |
!
interface Serial0
no ip address
no ip mroute-cache
encapsulation x25 dce
bandwidth 64
clock rate 64000
!
interface Serial1
no ip address
no ip mroute-cache
encapsulation x25 dce
bandwidth 64
clock rate 64000
!
!
x25 route ^4321 interface Serial0
x25 route ^1234 interface Serial1
!
|
| x25-3 |
!
interface Serial1
ip address 10.0.0.1 255.255.255.240
no ip mroute-cache
encapsulation x25
bandwidth 64
x25 address 4321
x25 map ip 10.0.0.2 1234 broadcast
!
|
Related Information
| Updated: Apr 12, 2002 |
Document ID: 12500 |
