Benefits Of Clock Recovery - Cisco ASR 900 Series Configuration Manual

Configuring DCR for OCn

Benefits of Clock Recovery

• Customer-edge devices (CEs) can have different clock from that of the Provide-edge devices (PEs).
Scaling Information
IM Card
DS1
DS3
1-Port OC192/STM-64 or 8-Port
OC3/12/48/STM-1/-4/-16 Interface Module
Configuring DCR for OCn
Configuring DCR in Mode VT15 for SAToP
enable
configure terminal
recovered-clock
clock recovered <clock-id> differential cem <port-no> <cem-group-no>
controller sonet <bay>/<slot>/<port>
rate OC3
sts-1 <number>
mode vt-15
vtg <vtg_no> t1 <t1_number> cem-group <cem-group-no> unframed
vtg <vtg_no> t1 <t1_number> clock source recovered <clock-id>
interface cem <bay>/<slot>/<port>
cem <cem-group-number>
rtp-present
end
Verifying DCR in Mode VT15 for SAToP
Verifying DCR Configuration
Router# show running-config | section 0/4/0
controller MediaType 0/4/0
mode sonet
controller SONET 0/4/0
rate OC48
no ais-shut
framing sonet
clock source internal
!
sts-1 1
clock source internal
mode vt-15
vtg 1 t1 1 clock source Recovered 0
vtg 1 t1 1 framing unframed
vtg 1 t1 1 cem-group 0 unframed
1-Port OC-192 or 8-Port Low Rate CEM Interface Module Configuration Guide, Cisco IOS XE Everest 16.7.x
(Cisco ASR 900 Series)
142
<bay> <slot>
Clock Recovery System for SAToP
Pseudowires Supported (Number of Clocks Derived)
48
1344
2000