From: Mark.Reyero@xxxxxxxxxxxxx
Date: Wed Nov 21 2001 - 12:08:54 GMT-3
Brian, Chris, Bryan & everyone who has been helpful thus far...
Here is how everything is configed:
MERGE (defaults):
Switch Type: NT-1
DX25 PHF: OFF
NAIL UP: NONE
DEFAULTS: NO
CALLER ID: OFF
DISPLAY: OFF
EXTS: OFF
A 2621 with a WIC1BU is plugged into Port 1, U interface
2520 with S/T port is plugged into Port 2, S/T interface
SPIDS and LDN were left as defaults, based upon Merge Documentation:
First Device at Port 1: SPID 0555100001 DN (800) 5551000
First Device at Port 2: SPID 0555200001 DN (800) 5552000
Second Device at Port 1: SPID: 0555300001 DN (800) 5553000
Second Device at Port 2: SPID: 0555400001 DN (800) 5554000
RouterA (2621) config:
hostname RouterA
!
enable password ccie
!
username RouterB password 0 cisco
!
ip subnet-zero
no ip domain-lookup
!
isdn switch-type basic-ni
!
interface FastEthernet0/0
ip address 192.168.1.1 255.255.255.0
no keepalive
duplex auto
speed auto
!
interface BRI0/0
ip address 192.168.2.1 255.255.255.0
encapsulation ppp
dialer idle-timeout 300
dialer map ip 192.168.2.2 name RouterB 5552000
dialer load-threshold 1 either
dialer-group 1
isdn switch-type basic-ni
isdn spid1 0555100001 5551000
isdn spid2 0555300001 5553000
ppp authentication chap
ppp multilink
!
!omitted
!
router eigrp 1
network 192.168.1.0
network 192.168.2.0
auto-summary
no eigrp log-neighbor-changes
!
ip classless
ip http server
!
dialer-list 1 protocol ip permit
!
line con 0
exec-timeout 0 0
password ccie
logging synchronous
login
line aux 0
line vty 0 4
exec-timeout 0 0
password ccie
logging synchronous
login
!
RouterB (2520)
hostname RouterB
!
enable password ccie
!
username RouterA password 0 cisco
!
ip subnet-zero
no ip domain-lookup
!
isdn switch-type basic-ni
!
interface Ethernet0
ip address 192.168.3.1 255.255.255.0
no keepalive
!
!omitted
!
interface BRI0
ip address 192.168.2.2 255.255.255.0
encapsulation ppp
dialer idle-timeout 300
dialer map ip 192.168.2.1 name RouterA 5551000
dialer load-threshold 128 either
dialer-group 1
isdn switch-type basic-ni
isdn spid1 0555200001 5552000
isdn spid2 0555400001 5554000
ppp authentication chap
ppp multilink
!
router eigrp 1
network 192.168.2.0
network 192.168.3.0
auto-summary
no eigrp log-neighbor-changes
!
ip classless
ip http server
!
dialer-list 1 protocol ip permit
!
line con 0
exec-timeout 0 0
password ccie
logging synchronous
login
line aux 0
line vty 0 4
exec-timeout 0 0
password ccie
logging synchronous
login
!
end
According to the following show isdn stat, Layer 1 is active on both ends,
and Layer 2 Multiple Frame Established. Curiously, notice how Spid1 on
RouterB is recognized as valid?
RouterA#sh isdn stat
Global ISDN Switchtype = basic-ni
ISDN BRI0/0 interface
dsl 0, interface ISDN Switchtype = basic-ni
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 66, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
TEI 66, ces = 1, state = 6(not initialized)
spid1 configured, spid1 sent, spid1 NOT valid
TEI Not Assigned, ces = 2, state = 1(terminal down)
spid2 configured, spid2 NOT sent, spid2 NOT valid
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 0 CCBs = 0
The Free Channel Mask: 0x80000003
Number of L2 Discards = 0, L2 Session ID = 15
Total Allocated ISDN CCBs = 0
RouterB#sh isdn stat
Global ISDN Switchtype = basic-ni
ISDN BRI0 interface
dsl 0, interface ISDN Switchtype = basic-ni
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 64, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
TEI = 65, Ces = 2, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
TEI 64, ces = 1, state = 5(init)
spid1 configured, spid1 sent, spid1 valid
Endpoint ID Info: epsf = 0, usid = 2, tid = 1
TEI 65, ces = 2, state = 6(not initialized)
spid2 configured, spid2 sent, spid2 NOT valid
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 0 CCBs = 0
The Free Channel Mask: 0x80000003
Number of L2 Discards = 0, L2 Session ID = 3
Total Allocated ISDN CCBs = 0
Next thing I do is to literally unplug the Cat5 from the Merge ports, wait 2
seconds, plug back in. Now look at the sh isdn stat!!!!!
RouterA#sh isdn stat
Global ISDN Switchtype = basic-ni
ISDN BRI0/0 interface
dsl 0, interface ISDN Switchtype = basic-ni
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 67, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
TEI = 68, Ces = 2, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
TEI 67, ces = 1, state = 5(init)
spid1 configured, spid1 sent, spid1 valid
Endpoint ID Info: epsf = 0, usid = 1, tid = 1
TEI 68, ces = 2, state = 5(init)
spid2 configured, spid2 sent, spid2 valid
Endpoint ID Info: epsf = 0, usid = 3, tid = 1
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 0 CCBs = 0
The Free Channel Mask: 0x80000003
Number of L2 Discards = 0, L2 Session ID = 18
Total Allocated ISDN CCBs = 0
RouterB#sh isdn stat
Global ISDN Switchtype = basic-ni
ISDN BRI0 interface
dsl 0, interface ISDN Switchtype = basic-ni
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 69, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
TEI = 70, Ces = 2, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
TEI 69, ces = 1, state = 5(init)
spid1 configured, spid1 sent, spid1 valid
Endpoint ID Info: epsf = 0, usid = 2, tid = 1
TEI 70, ces = 2, state = 5(init)
spid2 configured, spid2 sent, spid2 valid
Endpoint ID Info: epsf = 0, usid = 4, tid = 1
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 0 CCBs = 0
The Free Channel Mask: 0x80000003
Number of L2 Discards = 0, L2 Session ID = 9
Total Allocated ISDN CCBs = 0
SPIDS are now showing as valid?!?!?
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