Specifying E1 National Reserve Bits - Cisco 10000 Series Configuration Manual

Controller Configuration Commands
Note
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Specifying E1 National Reserve Bits

You use national reserve bits, which are embedded in-band control timeslot TS0 to codify a framing
protocol for national variations:
[no] national reserve int sa4 sa5 sa6 sa7 sa8
Where:
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Example:
Router(config-controller)# controller 2/0/2
Router(config-controller)# national reserve 1 1 1 1 0 1
Router(config-controller)#
The default [no] value of this command is 000000.
Note National reserve bits are active only when the framing no-crc4 command is invoked (see the
"Specifying E1 Framing" section on page
Specifying a T1 Yellow Alarm
This line card supports the ability to control generation and detection of a T1 yellow Remote Alarm
Indication (RAI). You enable or inhibit the RAI yellow alarm using the yellow command:
[no] yellow {generation | detection}
Where:
generation—Enables or inhibits the near- and far-end RAI yellow alarms.
detection—Inhibits or enables the near- end RAI yellow alarms.
Cisco 10000 Series Router Line Card Configuaration Guide
5-28
A T1 port in local loopback mode cannot send AIS due to hardware limitations. It only transmits
to the line what it loops back to it's receive. As a result, the remote end will keep receiving
packets from a port in local loopback.
network line—Configures the T1 framer for the network line submode. In this mode, the line card
transmitted packets are not reframed before they are sent to the remote device. The line card also
receives all incoming packets.
network payload—Configures the T1 framer for the network payload submode. In this mode, the
line card received packets are reframed before they are sent back to the remote device.
remote line—Configures the far end T1 in line loopback using the
ESF ANSI protocol.
remote payload—Configures the far end T1 in payload loopback using the ESF ANSI protocol.
remote iboc—Configures the far end T1 in line loopback using the SF inband protocol.
int—This is the national reserved bit.
Sa4 to Sa8—Specify the country-code bit values.
Chapter 5 24-Port Channelized E1/T1 Line Card Configuration
5-25).
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