Related Documentation
- M, MX, T Series
- Roadmap for Channelized IQ Interface Configuration Examples
- Roadmap for Configuring Channelized IQ Interfaces
- Additional Information
- Channelized IQ Interfaces Solutions Page
Example: Channelized E1 IQ Interface Configuration
Figure 1: Channelized E1 IQ Interface Example

This example shows two ways to configure a channelized E1 IQ interface. Figure 1 shows a fractional E1 method and the NxDS0 method seen previously in the complex OC12 configuration example (see Example: Complex Configuration for a Channelized OC12 IQ Interface). The NxDS0 method breaks the channelized E1 IQ interface into discrete DS0 blocks, whereas the fractional method creates a clear channel E1 that is segmented by time slots.
To configure NxDS0 channels, include the partition statement at the [edit interfaces ce1-fpc /pic/port] hierarchy level. Include the timeslots and interface-type ds options to create the desired number of NxDS0 interfaces in time slots 2 through 32.
To configure a fractional E1 on a channelized E1 IQ interface, include the no-partition statement at the [edit interfaces ce1-fpc/pic/port] hierarchy level. After you commit this configuration, configure standard E1 options on the clear channel E1 interface. Include the timeslots statement at the [edit interfaces e1-fpc/pic/port e1-options] hierarchy level. Time slot 1 is reserved; use time slots 2 through 32.
Router A—NxDS0 Method
Router A—Fractional E1 Method
Verifying Your Work
To verify correct operation of a channelized E1 IQ interface, use the following commands:
- show interfaces
- show interfaces controller
- show interfaces interval (for E1 and channelized E1 channels)
To view the interface names of the physical channelized E1 IQ interface and the resulting interfaces configured on the channelized IQ interface, use the show interfaces controller command:
user@RouterA> show interfaces controller
ce1-1/2/3
Controller Admin Link ce1-1/2/3 up up # This is the physical channelized E1 IQ interface. ds-1/2/3:1 up up ds-1/2/3:2 up up # These are the resulting N xDS0 interfaces. user@RouterA> show interfaces controller ce1-1/2/6 Controller Admin Link ce1-1/2/6 up up # This is the physical channelized E1 IQ interface. e1-1/2/6 up up # This is the resulting E1 interface.
To view information about the physical channelized interface, include the ce1-fpc/pic/port option with the show interfaces command:
user@RouterA> show interfaces ce1-1/2/3
Physical interface: ce1-1/2/3, Enabled, Physical link is Up Interface index: 18, SNMP ifIndex: 1128 Link-level type: Controller, MTU: 1504, Clocking: Internal, Speed: E1, Loopback: None, FCS: 16, Framing: G704, Parent: None Device flags : Present Running Interface flags: Point-To-Point SNMP-Traps Link flags : None Last flapped : 2002-10-04 17:52:51 PDT (00:32:57 ago) Input rate : 0 bps (0 pps) Output rate : 0 bps (0 pps) DS1 alarms : None DS1 defects : None user@RouterA> show interfaces ce1-1/2/6 Physical interface: ce1-1/2/6, Enabled, Physical link is Up Interface index: 25, SNMP ifIndex: 1134 Link-level type: Controller, MTU: 1504, Clocking: Internal, Speed: E1, Loopback: None, FCS: 16, Framing: G704, Parent: None Device flags : Present Running Interface flags: Point-To-Point SNMP-Traps Link flags : None Last flapped : 2002-10-04 17:52:51 PDT (00:34:49 ago) Input rate : 0 bps (0 pps) Output rate : 0 bps (0 pps) DS1 alarms : None DS1 defects : None
To view information about an NxDS0 interface, include the ds-fpc/ pic/port:channel option with the show interfaces command:
user@RouterA> show interfaces
ds-1/2/3:1 detail
Physical interface: ds-1/2/3:1, Enabled, Physical link is Up Interface index: 73, SNMP ifIndex: 1202, Generation: 325 Link-level type: PPP, MTU: 1504, Clocking: Internal, Speed: 64kbps, Loopback: None, FCS: 16, Parent: ce1-1/2/3 (Index 18) Device flags : Present Running Interface flags: Point-To-Point SNMP-Traps Link flags : Keepalives Hold-times : Up 0 ms, Down 0 ms Keepalive settings: Interval 10 seconds, Up-count 1, Down-count 3 Keepalive statistics: Input : 11 (last seen 00:00:02 ago) Output: 10 (last sent 00:00:06 ago) LCP state: Opened NCP state: inet: Opened, inet6: Opened, iso: Opened, mpls: Not-configured CHAP state: Not-configured Last flapped : 2002-10-04 18:24:32 PDT (00:01:46 ago) Statistics last cleared: Never Traffic statistics: Input bytes : 559 56 bps Output bytes : 656 56 bps Input packets: 33 0 pps Output packets: 36 0 pps Queue counters: Queued packets Transmitted packets Dropped packets 0 best-effort 40 40 0 1 expedited-fo 0 0 0 2 assured-forw 0 0 0 3 network-cont 0 0 0 Logical interface ds-1/2/3:1.0 (Index 36) (SNMP ifIndex 1266) (Generation 153) Flags: Point-To-Point SNMP-Traps Encapsulation: PPP Protocol inet, MTU: 1500, Generation: 352, Route table: 0 Flags: None Addresses, Flags: Is-Preferred Is-Primary Destination: 10.25.1/24, Local: 10.25.1.2, Broadcast: Unspecified, Generation: 445 Protocol iso, MTU: 1500, Generation: 353, Route table: 0 Flags: Is-Primary Protocol inet6, MTU: 1500, Generation: 354, Route table: 0 Flags: Is-Primary Addresses, Flags: Is-Preferred Destination: fe80::/64, Local: fe80::2a0:a5ff:fe3d:ac6, Broadcast: Unspecified, Generation: 446 Addresses, Flags: Is-Preferred Is-Primary Destination: feee::10:25:1:0/126, Local: feee::10:25:1:2, Broadcast: Unspecified, Generation: 448
To view information about the fractional E1 interface, include the e1-fpc/pic/port option with the show interfaces command:
user@RouterA> show interfaces e1-1/2/6
detail
Physical interface: e1-1/2/6, Enabled, Physical link is Up Interface index: 89, SNMP ifIndex: 1278, Generation: 341 Link-level type: PPP, MTU: 1504, Clocking: Internal, Speed: E1, Loopback:None, FCS: 16, Framing: G704, Parent: ce1-1/2/6 (Index 25) Device flags : Present Running Interface flags: Point-To-Point SNMP-Traps Link flags : Keepalives Hold-times : Up 0 ms, Down 0 ms Keepalive settings: Interval 10 seconds, Up-count 1, Down-count 3 Keepalive statistics: Input : 4 (last seen 00:00:05 ago) Output: 3 (last sent 00:00:09 ago) LCP state: Opened NCP state: inet: Opened, inet6: Not-configured, iso: Not-configured, mpls: Not-configured CHAP state: Not-configured Last flapped : 2002-10-04 18:28:27 PDT (00:01:07 ago) Statistics last cleared: Never Traffic statistics: Input bytes : 189 0 bps Output bytes : 478 0 bps Input packets: 13 0 pps Output packets: 28 0 pps Queue counters: Queued packets Transmitted packets Dropped packets 0 best-effort 28 28 0 1 expedited-fo 0 0 0 2 assured-forw 0 0 0 3 network-cont 0 0 0 DS1 alarms : None DS1 defects : None DS1 BERT configuration: BERT time period: 10 seconds, Elapsed: 0 seconds Induced Error rate: 10e-0, Algorithm: Unknown (0) Logical interface e1-1/2/6.0 (Index 52) (SNMP ifIndex 1279) (Generation 169) Flags: Point-To-Point SNMP-Traps Encapsulation: PPP Bandwidth: 0 Protocol inet, MTU: 1500, Generation: 401, Route table: 0 Flags: None Addresses, Flags: Is-Preferred Is-Primary Destination: 10.255.126/24, Local: 10.255.126.2, Broadcast: Unspecified, Generation: 525
Related Documentation
- M, MX, T Series
- Roadmap for Channelized IQ Interface Configuration Examples
- Roadmap for Configuring Channelized IQ Interfaces
- Additional Information
- Channelized IQ Interfaces Solutions Page
Published: 2012-11-28
Related Documentation
- M, MX, T Series
- Roadmap for Channelized IQ Interface Configuration Examples
- Roadmap for Configuring Channelized IQ Interfaces
- Additional Information
- Channelized IQ Interfaces Solutions Page