语音路由器2921的T1/E1接口找不到
最近两家金融机构采购了两台3925，两台2901路由器，到货后我去现场做设备验收，所有准备工作完成后，加电质检，先拿Cisco2901来说，广域网增加两块WIC-1模块；加电完成后信息提示：
Cisco CISCO2901/K9 (revision 1.0) with 483328K/40960K bytes of memory.
Processor board ID FGL1529214L1
2 Gigabit Ethernet interfaces
DRAM configuration is 64 bits wide with parity enabled.
255K bytes of non-volatile configuration memory.
250880K bytes of ATA System CompactFlash 0 (Read/Write)
没有发现串口信息，通过show inventory:
------------------ show inventory ------------------
NAME: "CISCO2901/K9 chassis", DESCR: "CISCO2901/K9 chassis"
PID: CISCO2901/K9 , VID: V02 , SN: FGL1529214l
NAME: "C1941/C2901 AC Power Supply", DESCR: "C1941/C2901 AC Power Supply"
PID: PWR-1941-2901-AC , VID: , SN:
show running查看配置信息，没有也串口信息：
interface GigabitEthernet0/0
no ip address
duplex auto
speed auto
shutdown
!
interface GigabitEthernet0/1
no ip address
shutdown
duplex auto
speed auto
通过show diag
Slot 0:
C2901 Mother board 2GE, integrated VPN and 4W Port adapter, 2 ports
Port adapter is analyzed
Port adapter insertion time 06:13:56 ago
EEPROM contents at hardware discovery:
PCB Serial Number : FOC15255T02
Hardware Revision : 1.0
Part Number : 73-11834-06
Top Assy. Part Number : 800-30795-02
Board Revision : E0
Deviation Number : 113332
Fab Version : 03
Product (FRU) Number : CISCO2901/K9
Version Identifier : V02
CLEI Code : CMMBN00ARA
Processor type : C1
Chassis Serial Number : FGL15292141
Chassis MAC Address : 30e4.db8a.7b20
MAC Address block size : 72
Manufacturing Test Data : 00 00 00 00 00 00 00 00
EEPROM format version 4
EEPROM contents (hex):
WIC Slot 0:
Serial 1T WAN daughter card
WIC module not supported/disabled in this slot
Hardware revision 1.0 Board revision J0
Serial number 35442149 Part number 800-01514-01
FRU Part Number WIC-1T=
Test history 0x0 RMA number 00-00-00
Connector type Wan Module
EEPROM format version 1
EEPROM contents (hex):
系统发现模块，但不支持，原因是Cisco 2901广域网接口是EHWIC接口，因发货错误发了两块WIC-1T 模块，新设备向下可以兼容，WIC-1T 已经停产了，思科不想对产品技术和模块支持，故导致上述问题，通知销售发了两块HWIC-1T模块，设备加电后信息是：
Cisco CISCO2901/K9 (revision 1.0) with 483328K/40960K bytes of memory.
Processor board ID FGL15292141
2 Gigabit Ethernet interfaces
1 Serial(sync/async) interface
DRAM configuration is 64 bits wide with parity enabled.
255K bytes of non-volatile configuration memory.
250880K bytes of ATA System CompactFlash 0 (Read/Write)
Jan 2 12:00:03.019: %IOS_LICENSE_IMAGE_APPLICATION-6-LICENSE_LEVEL: Module name = c2900 Next reboot level = ipbasek9 and License = ipbasek9
Nov 16 01:51:25.615: %IFMGR-7-NO_IFINDEX_FILE: Unable to open nvram:/ifIndex-table No such file or directory
Nov 16 01:51:39.159: %LINK-3-UPDOWN: Interface GigabitEthernet0/0, changed state to up
Nov 16 01:51:39.159: %LINK-3-UPDOWN: Interface GigabitEthernet0/1, changed state to down
Nov 16 01:51:39.159: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to down
Nov 16 01:51:40.387: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up
Nov 16 01:51:40.387: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to down
Nov 16 01:51:40.387: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down
Nov 16 01:51:41.371: %SYS-5-CONFIG_I: Configured from memory by console
Nov 16 01:51:43.403: %LINK-5-CHANGED: Interface GigabitEthernet0/1, changed state to administratively down
Nov 16 01:51:43.403: %LINK-5-CHANGED: Interface Serial0/0/0, changed state to administratively down
Nov 16 01:51:44.079: %SYS-5-RESTART: System restarted --
模块通过检测并认到，通过show run
interface GigabitEthernet0/0
no shutdown
no ip address
duplex auto
speed auto
!
interface GigabitEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0/0
no ip address
shutdown
clock rate 2000000
案例II：Cisco3925广域网接口类型是EHWIC，客户增加VWIC2 1MFT-G703板卡，设备加电后信息显示：
Cisco CISCO3925-CHASSIS (revision 1.0) with C3900-SPE100/K9 with 995328K/53248K bytes of memory.
Processor board ID FGL15321131
3 Gigabit Ethernet interfaces
1 terminal line
2 Channelized (E1 or T1)/PRI ports
DRAM configuration is 72 bits wide with parity enabled.
255K bytes of non-volatile configuration memory.
255744K bytes of ATA System CompactFlash 0 (Read/Write)
但通过show running命令查看时
!
!
interface Embedded-Service-Engine0/0
no ip address
shutdown
!
interface GigabitEthernet0/0
ip address 10.10.10.1 255.255.255.248
duplex auto
speed auto
!
interface GigabitEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface GigabitEthernet0/2
no ip address
shutdown
duplex auto
speed auto
!
ip forward-protocol nd
!
没有发现通常看到的CONTROLLER E1 信息，开始认为是IOS不支持，我就升级了IOS，分别是
c3900-universalk9_npe-mz.SPA.150-1.M2.bin
c3900-universalk9-mz.SPA.150-1.M5.bin后，信息依然是没有发现，但通过show run发现一条有价值信息，!
!
! card type command needed for slot/vwic-slot 0/0
! card type command needed for slot/vwic-slot 0/1
logging buffered 51200 warnings
!
通过资料发现，本产品是单独通过一条命令来激活，card type e1 0 0 （根据自己的实际接口来激活）
controller E1 0/0/0
framing NO-CRC4
channel-group 0 timeslots 1-31
!
!
track 1 interface Serial0/0/0:0 line-protocol
!
!
!
!
interface Embedded-Service-Engine0/0
no ip address
!
interface GigabitEthernet0/0
ip address X.X.X.X
no ip redirects
no ip proxy-arp
duplex auto
speed auto
!
interface GigabitEthernet0/1
ip address X.X.X.X
duplex auto
speed auto
!
interface GigabitEthernet0/2
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0/0:0
description link_DX.SDH.CS_SH
ip address
通过这两次碰到的问题，大家在实施过程中应该提前去思科官网去查看产品手册资料，了解设备性能等，非常简单问题打断我的实施进度，所以各位要所有准备。