| Logical
Interfaces |
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Add logical interfaces
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Defines one or more logical units that you connect to this physical
T3 interface. You must define at least one logical unit for a T3 interface.
You can define multiple units if the encapsulation type is Frame Relay.
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Click Add.
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Logical Interface Description
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(Optional) Describes the logical interface.
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Type a text description of the logical interface to more clearly
identify it in monitoring displays.
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IPv4 Addresses and Prefixes
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Specifies one or more IPv4 addresses for the interface.
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- Type one or more IPv4 addresses and prefixes.
For example:
10.10.10.10/24
- Click Add.
- Click OK.
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Physical Interface Description
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(Optional) Adds supplementary information about the physical
T3 interface.
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Type a text description of the T3 interface to more clearly
identify it in monitoring displays.
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MTU (bytes)
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Specifies the maximum transmission unit size for the T3 interface.
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Type a value between 256 and 9192 bytes.
The default MTU for T3 interfaces is 4474.
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Clocking
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Specifies the transmit clock source for the T3 line.
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From the list, select one of the following:
-
internal—Services Router's
own system clock (the default)
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external—Clock received from
the T3 interface
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Per unit scheduler
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Enables scheduling on logical interfaces.
Allows you to configure multiple output queues on a logical
interface and associate an output scheduler and shaping rate with
the queues.
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- To enable scheduling, select the check box.
- To disable scheduling, clear the check box.
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| Encapsulation |
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Encapsulation
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Specifies the encapsulation type for traffic on the interface.
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From the list, select the encapsulation for this T3 interface:
-
PPP
-
Frame Relay
-
Cisco HDLC
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Enable CHAP
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Enables or disables CHAP authentication on a T3 interface with
PPP encapsulation only.
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- To enable CHAP, select the check box.
- To disable CHAP, clear the check box.
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| CHAP
Local Identity (available if CHAP is enabled) |
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Use System Host Name
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Specifies that the T3 interface uses the Services Router's system
hostname in CHAP challenge and response packets.
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- To enable, select the check box (the default).
- To disable, clear the check box.
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Local Name
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If Use System Host Name is disabled, specifies the local name
for CHAP to use.
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Type a local name for this T3 interface.
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CHAP Peer Identity
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Identifies the client or peer with which the Services Router communicates
on this T3 interface.
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Type the CHAP client name.
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CHAP Secret
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Specifies the secret password for CHAP authentication, known
to both sides of the connection.
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Type a password that is known to the other side of the connection.
Use a combination of letters and numbers that is difficult for others
to guess.
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| T3
Options |
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Frame Checksum
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Specifies the number of bits in the frame checksum. A 32-bit
checksum provides more reliable packet verification, but is not supported
by some older equipment.
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Select 16 or 32. The
default value is 16.
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Enable Long Buildout
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Specifies a short or long cable length for copper-cable-based
T3 interfaces. A long cable is longer than 225 feet (68.6m).
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- To enable long buildout, select the check box.
- To disable long buildout, clear the check box.
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Disable C-Bit Parity Mode
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Enables or disables C-bit parity mode, which controls the type
of framing that is present on the transmitted T3 signal.
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- To disable, select the check box.
- To enable, clear the check box.
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