how we check if csu is internal to router or not

Unanswered Question
Feb 16th, 2009
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Hi all

on router

cisco CISCO7606 (R7000) processor (revision 1.0) with 227328K/34816K bytes of memory.

Processor board ID FOX0838006Q

R7000 CPU at 300Mhz, Implementation 0x27, Rev 3.3, 256KB L2, 1024KB L3 Cache

Last reset from power-on

X.25 software, Version 3.0.0.

Bridging software.

Primary Rate ISDN software, Version 1.1.

2 FlexWAN controllers (2 Serial)(16 T1)(1 ATM).

1 Virtual Ethernet/IEEE 802.3 interface(s)

48 FastEthernet/IEEE 802.3 interface(s)

4 Gigabit Ethernet/IEEE 802.3 interface(s)

18 Serial network interface(s)

1 ATM network interface(s)

381K bytes of non-volatile configuration memory.

whic has these interfaces

oktulwanr1#sh ip int brief

Interface IP-Address OK? Method Status Protocol

Vlan1 unassigned YES NVRAM administratively down down

GigabitEthernet1/1 192.168.253.242 YES manual up up

GigabitEthernet1/2 unassigned YES NVRAM administratively down down

GigabitEthernet2/1 unassigned YES NVRAM administratively down down

GigabitEthernet2/2 192.168.253.250 YES manual up up

Serial3/0/0 172.22.3.1 YES manual up up

Serial3/0/1 unassigned YES unset administratively down down

Serial3/1/0:0 172.28.255.1 YES NVRAM up up

Serial3/1/1:0 10.13.253.1 YES manual up up

Serial3/1/2:0 unassigned YES NVRAM up up

Serial3/1/2:0.1 172.26.249.1 YES NVRAM administratively down down

Serial3/1/2:0.2 172.26.249.5 YES NVRAM administratively down down

Serial3/1/2:0.3 172.26.103.205 YES NVRAM up up

Serial3/1/2:0.4 unassigned YES unset administratively down down

Serial3/1/2:0.5 unassigned YES manual administratively down down

Serial3/1/2:0.6 172.26.100.33 YES NVRAM administratively down down

Serial3/1/2:0.7 172.26.18.9 YES NVRAM up up

Serial3/1/2:0.8 172.26.18.5 YES NVRAM up up

Serial3/1/3:0 172.26.16.145 YES manual up up

Serial3/1/4:0 172.26.16.133 YES manual up up

Serial3/1/5:0 172.26.150.253 YES NVRAM up up

Serial3/1/6:0 172.22.40.253 YES NVRAM up up

Serial3/1/7:0 unassigned YES manual administratively down down

Serial4/0/0:0 unassigned YES manual up up

Serial4/0/1:0 unassigned YES manual up up

Serial4/0/2:0 unassigned YES manual administratively down down

Serial4/0/3:0 172.22.4.1 YES NVRAM up up

Serial4/0/4:0 unassigned YES NVRAM up up

Serial4/0/5:0 unassigned YES manual up up

Serial4/0/6:0 unassigned YES manual up up

Serial4/0/7:0 unassigned YES manual up up

ATM4/1/0 unassigned YES NVRAM administratively down down

FastEthernet5/1.1 172.16.100.1 YES NVRAM administratively down down

FastEthernet5/2 unassigned YES TFTP administratively down down

FastEthernet5/3 192.168.9.177 YES NVRAM administratively down down

FastEthernet5/4 unassigned YES NVRAM administratively down down

FastEthernet5/5


i have two questions

1>how we can tell if csu is internal or

external to router

2>what does serial3/1/0:0 mean

my understanding is module 3 wic card 1

slot 00 or 0?

samething for Serial3/1/2:0.5

many thanks

mahesh

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Giuseppe Larosa Mon, 02/16/2009 - 13:55
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Hello Mahesh,

your C7600 has two port adapters with 8T1 each.


if you look in the configuration you will find section about


controller t1 ser4/0/x

channel-group 0 unframed


each interface


ser3/1/y:0 and ser4/0/x:0 are derived from the t1 controllers


a Cisco 7600 can support these PAs that have been introduced for C7500 and C7200 using special linecards named flexwan see this line


2 FlexWAN controllers (2 Serial)(16 T1)(1 ATM).


from your sh ver


these PAs have RJ-45 female ports and should have internal CSU.


Serial3/1/2:0.5 is a subinterface of serial ser3/1/2:0 that is derived from controller t1 3/1/2.


Hope to help

Giuseppe



mahesh18 Mon, 02/16/2009 - 15:04
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Hi

thanks for reply

from sh run i have

controller T1 4/0/0

framing esf

clock source internal

linecode b8zs

channel-group 0 timeslots 1-24


how do u came to know that these are

these PAs have RJ-45 female ports

many thanks

mahesh

mahesh18 Mon, 02/16/2009 - 15:09
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Also this 16 T1 lines on 2 serial

modules. right?

what does this mean-

Serial3/1/2:0.5 is a subinterface of serial ser3/1/2:0 that is derived from controller t1 3/1/2.

my understanding is that ser3/1/2:0 is physical interface and Serial3/1/2:0.5

is logical interface right?

i did not understand this line

that is derived from controller t1 3/1/2.



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