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Chapter 14

Chapter 14. Configuring T1/E1 and ISDN PRI Options. Objectives. Upon completion of this chapter, you will be able to perform the following tasks: Identify channelized T1 and E1 configuration commands Identify ISDN PRI configuration commands. Configuring T1 and E1.

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Chapter 14

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  1. Chapter 14 Configuring T1/E1 and ISDN PRI Options

  2. Objectives Upon completion of this chapter, you will be able to perform the following tasks: Identify channelized T1 and E1 configuration commands Identify ISDN PRI configuration commands

  3. Configuring T1 and E1

  4. Channelized T1/E1 Overview • DS-0 framing for a single 64-kbps channel • DS-1 framing for a single 1. 544-Mbps T1 or 2.108-Mbps E1 30 Subchannels 24 Subchannels E1 T1 MUX MUX

  5. Channelized T1/E1 Overview CSU/DSU CSU/DSU CSU/DSU CSU/DSU 64 kbps FSIP 4-port Fast Serial Interface Processor 64 kbps Public Data Network 64 kbps 64 kbps Cisco 7000 64 kbps Subshannels 0-23 64 kbps Becomes T1/E1 Private Data Network Port 0 MIP MultiChannel interface Processor (Channelized T1/E1) MUX 64 kbps Subshannels 0-23 64 kbps Public Data Network Port 1 Cisco 7000

  6. Channelized T1/E1 Configuration Router (config) # Controller [t1 | e1] [slot/port | number] • Configures T1 or E1 controller and enters controller configuration mode Router (config-controller) # Channel-group number timeslots range speed { 48 | 56 | 64 } • Specifies the channel group (subchannel) associated with each time slot

  7. Channelized T1 Configuration Router (config-controler) # framing { sf | esf } • Defines the framing type required for a fractional T1 data line Router (config-controller) # linecode { ami | b8zs } • Specifies the line code type required for communication with the service provider Router (config-controller) # clock source { line | internal } • Sets the clock source

  8. Channelized T1 Configuration Example MultiChannel Interface Processor T1 Line (Port 1) (Slot 4) Cisco 7000 controller t1 4/1 framing esf line code b8zs clock source line channel-group 0 timeslots 1 channel-group 8 timeslots 6-11 ! Interface serial 4/1:0 ip address 172.16.13.1 255.255.255.0 encapsulation ppp ! Interface serial 4/1:8 ip address 172.16.1.1 255.255.255.0

  9. Channelized E1 Configuration Router (config-controller) # framing { crc4 | no-crc4 } [ australia ] • Defines the framing type required for a fractional E1 data line Router (config-controller) # linecode { ami | hdb3 } • Specifies the line-code type required for communication with the service provider

  10. Channelized E1 Configuration Example MultiChannel Interface Processor E1 Line (Port 1) (Slot 4) Cisco 7000 controller e1 4/1 framing crc4 line code hdb3 clock source line channel-group 0 timeslots 1 channel-group 8 timeslots 5,7,12-15,28 ! Interface serial 4/1:0 ip address 172.16.13.1 255.255.255.0 encapsulation ppp ! Interface serial 4/1:8 ip address 172.16.1.1 255.255.255.0

  11. Configuring Primary Rate Interface

  12. ISDN PRI Is 23B+D (or 30B+D) Cisco 7000 T1/E1 link ISDN 64-kbps D channel for B channel-call setup D All PRI channels are 64 kbps (DS-0) 23/30 B Interface B Channels Where used T1 PRI 23 North America and Japan E1 PRI 30 Europe and rest of the World

  13. Configuring for PRI CSU/DSU • Select PRI switch type • Specify T1/E1 controller, framing and line coding for the facility • Set PRI group time slot for T1/E1 and indicate speed used • Specify the interface on the router that you will configure for DDR ISDN

  14. ISDN PRI Configuration Router (config) # isdn switch-type primary rate switch type • Specifies ISDN PRI service switch type Router (config) # controller { t1 | e1 } slot/port | number • Configures T1/E1 controller

  15. T1/E1 Controller Options for PRI Router (config-controller) # framing { esf | crc4 } • Selects the framing type on the router processor or module to interface ISDN PRI service Router (config-controller) # linecode { b8zs | hdb3 } • Selects the line code type on the router processor or module to interface ISDN PRI service

  16. ISDN PRI Configuration Router (config-controller) # pri-goup [ timeslot range ] • Specifies ISDN PRI on the router’s channelized T1/E1 card and sets appropriate speed Router (config) # interface serial slot/port | number: { 23 | 15 }

  17. PRI Configuration Example CSU/DSU Cisco 7500 ISDN 4ESS T1 isdn switch-type primary-4ess ! controller t1 2/0 pri-group timeslots 1-23 framing esf linecode b8zs ! interface serial 2/0:23 !(set ip address, dialer, provider config statements) ip address 172.16.11.2 255.255.255.0

  18. Summary This chapter presented the following serial line features: Channelized T1 Channelized E1 ISDN PRI

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