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# Managing the Ethernet Port on the SRP Module

You can configure the Fast Ethernet management port to access the router from a Telnet session or SNMP.

On ERX-7xx models, ERX-14xx models, and ERX-310 routers, the Fast Ethernet port is located on the SRP I/O module. For more information about configuring the Fast Ethernet port on an SRP I/O module, see ERX Hardware Guide, Chapter 7, Accessing ERX Routers.

Use the Fast Ethernet port on the SRP I/O module only as a router management port. Do not use this port to route traffic for Fast Ethernet or higher-level protocols such as transport or routing protocols, because doing so affects the performance of the router.

On the E120 router and the E320 router, the Fast Ethernet port is located on the SRP IOA. For more information about configuring the Fast Ethernet port on an SRP IOA, see E120 and E320 Hardware Guide, Chapter 7, Accessing E-Series Routers.

interface fastEthernet

- Use to select a Fast Ethernet interface on a line module or an SRP module.
- On ERX-7xx models, ERX-14xx models, and the ERX-310 router, specify the Fast Ethernet interface management port by using the slot/port format.
- On the E120 and E320 routers, you can specify the Fast Ethernet port on the SRP IOA by using the slot/adapter/port format. The port on the SRP IOA is always identified as 0.
- Example 1—Selects a Fast Ethernet management port on ERX-7xx models, ERX-14xx models, or the ERX-310 router
  `
  host1(config)#interface fastEthernet 0/0
  `
- Example 2—Selects a Fast Ethernet management port on the E320 router
  `
  host1(config)#interface fastEthernet 6/0/0
  `
- Use the no version to remove IP from an interface or subinterface.
- See interface fastEthernet.

## Monitoring Statistics

You can set a baseline and view statistics on the Fast Ethernet port of the SRP module in the same way that you would for other Ethernet interfaces. See JUNOSe Physical Layer Configuration Guide.

## Monitoring the Ethernet Configuration for the SRP Module

Slots 0 and 1 are reserved for SRP modules on ERX-7xx models; slots 6 and 7 are reserved for SRP modules on ERX-14xx models, the E120 router, and the E320 router. When you configure the Fast Ethernet interface on an SRP module, the output of the show configuration command always indicates that the interface is configured in the lower of the two slots (slot 0 or slot 6). This indication is true if you configure the interface on a redundant SRP module in the higher slot or even if you have only one SRP module and it is installed in the higher slot, as shown in the following example:

    host1#show version
    Juniper Edge Routing Switch ERX-700
    Copyright (c) 1999-2005 Juniper Networks, Inc.  All rights reserved.
    System Release: erx_7-1-0.rel Partial
            Version: 7.1.0 [BuildId 4518]   (December 21, 2005  11:23)
    System running for: 25 days, 3 hours, 31 minutes, 5 seconds
            (since THU DEC 22 2005 11:36:41 UTC)

    slot  state     type     admin  spare  running release    slot uptime
    ---- ------- ---------- ------- ----- ------------------ --------------
    0    standby SRP-10Ge   enabled  ---  erx_7-1-0.rel           ---
    1    online  SRP-10Ge   enabled  ---  erx_7-1-0.rel      25d03h:28m:49s
    2      ---      ---       ---    ---         ---              ---
    3      ---      ---       ---    ---         ---              ---
    4    online  CT3-12     enabled  ---  erx_7-1-0.rel      25d03h:24m:46s
    5    online  OC3-4A-APS enabled  ---  erx_7-1-0.rel      25d03h:24m:22s
    6    online  GE         enabled  ---  erx_7-1-0.rel      25d03h:24m:44s

    host1#configure terminal
    Enter configuration commands, one per line.  End with ^Z.
    host1(config)#interface fastethernet 0/0
    host1(config-if)#ip address 10.6.130.83 255.255.128.0
    host1(config-if)#exit
    host1(config)#ip route 0.0.0.0 0.0.0.0 10.6.128.1
    host1(config)#exit
    host1#show config
    ! Configuration script being generated on TUE SEP 14 2004 13:22:06 UTC
    ! Juniper Edge Routing Switch ERX-700
    ! Version: 6.0.0 beta-1.8 [BuildId 2538] (September 7, 2004  12:46)
    ! Copyright (c) 1999-2004 Juniper Networks, Inc.  All rights reserved.
    !
    ! Commands displayed are limited to those available at privilege level 10
    !
    boot config running-configuration
    boot system erx_6-0-0b1-8.rel
    no boot backup
    no boot subsystem
    no boot backup subsystem
    no boot force-backup
    !
    ! Note:  The following commands are here to ensure that all virtual routers and
    ! vrfs are created before other commands that may need to reference them.
    ! These commands will be repeated further on as each virtual router and vrf
    ! has its configuration presented.
    !
    virtual-router default
    virtual-router vr8
    !
    !
    hostname "host1"
    exception protocol ftp anonymous null
    !
    controller t3 2/0
    [...]
    !
    interface fastEthernet 0/0
     ip address 10.6.130.83 255.255.128.0
    !
    ip route 0.0.0.0 0.0.0.0 10.6.128.1
    ! Trap Source: <not configured>
    ! Note: SNMP server not running.
    !

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