From: Brian Dennis (bdennis@internetworkexpert.com)
Date: Sat Jul 16 2005 - 14:19:15 GMT-3
Dillon,
No, it doesn't if you use a dialer map or a dialer string. Here
is an example using a dialer map:
Rack2R4#sho run int br0/0
Building configuration...
Current configuration : 232 bytes
!
interface BRI0/0
ip address 10.1.1.4 255.255.255.0
encapsulation ppp
dialer map ip 10.1.1.5 broadcast 5272025
dialer load-threshold 1 outbound
dialer-group 1
isdn switch-type basic-ni
isdn spid1 5272024
ppp multilink
end
Rack2R4#
Rack2R5#sho run int br0/0
Building configuration...
Current configuration : 198 bytes
!
interface BRI0/0
ip address 10.1.1.5 255.255.255.0
encapsulation ppp
dialer map ip 10.1.1.4 broadcast 5272024
dialer-group 1
isdn switch-type basic-ni
isdn spid1 5272025
ppp multilink
end
Rack2R5#
Rack2R4#ping 10.1.1.5 repeat 1
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 10.1.1.5, timeout is 2 seconds:
.
Success rate is 0 percent (0/1)
Rack2R4#
%LINK-3-UPDOWN: Interface BRI0/0:1, changed state to up
%LINK-3-UPDOWN: Interface Virtual-Access2, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:1, changed state
to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access2, changed
state to up
Rack2R4#
%ISDN-6-CONNECT: Interface BRI0/0:1 is now connected to 5272025 Rack2R5
Rack2R4#
Rack2R4#sho ppp multilink
Virtual-Access2, bundle name is Rack2R5
Bundle up for 00:00:10, 1/255 load
Receive buffer limit 12192 bytes, frag timeout 1524 ms
Dialer interface is BRI0/0
0/0 fragments/bytes in reassembly list
0 lost fragments, 0 reordered
0/0 discarded fragments/bytes, 0 lost received
0x0 received sequence, 0x0 sent sequence
Member links: 1 (max not set, min not set)
BR0/0:1, since 00:00:10 <-- Only one B channel is connected
Rack2R4#ping 10.1.1.5 repeat 50
Type escape sequence to abort.
Sending 50, 100-byte ICMP Echos to 10.1.1.5, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (50/50), round-trip min/avg/max = 32/33/37
ms
Rack2R4#ping 10.1.1.5 repeat 50
Type escape sequence to abort.
Sending 50, 100-byte ICMP Echos to 10.1.1.5, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (50/50), round-trip min/avg/max = 20/23/36
ms
Rack2R4#
%LINK-3-UPDOWN: Interface BRI0/0:2, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:2, changed state
to up
Rack2R4#
%ISDN-6-CONNECT: Interface BRI0/0:2 is now
Rack2R4#sho ppp multilink
Virtual-Access2, bundle name is Rack2R5
Bundle up for 00:00:45, 1/255 load
Receive buffer limit 24384 bytes, frag timeout 1524 ms
Dialer interface is BRI0/0
0/0 fragments/bytes in reassembly list
0 lost fragments, 0 reordered
0/0 discarded fragments/bytes, 0 lost received
0x58 received sequence, 0x56 sent sequence
Member links: 2 (max not set, min not set)
BR0/0:1, since 00:00:45
BR0/0:2, since 00:00:10
Rack2R4#
Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
bdennis@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987
Direct: 775-745-6404 (Outside the US and Canada)
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Dillon Yang
Sent: Saturday, July 16, 2005 9:56 AM
To: swm@emanon.com
Cc: Group Study
Subject: Re: ONLY one SPID on PPP multilink
Hi, Scott:
Thanks, the "dialer string" command may be the best choice for one
spid on PPP multilink, I guess.
I will lab it.
TIA'
dillon
----- Original Message -----
From: "Scott Morris" <swm@emanon.com>
To: "'John Matus'" <jmatus@pacbell.net>; "'Dillon Yang'"
<dillony@gmail.com>; "'Group Study'" <ccielab@groupstudy.com>
Sent: Saturday, July 16, 2005 11:26 PM
Subject: RE: ONLY one SPID on PPP multilink
> Yes and no.
>
> It will all depend on your ISDN switch configuration. SPIDs are a
> technically arbitrary thing anyway just as a reference point.
>
> Your ability to place two phone calls to the same number or not will
depend
> on whether the switch is capable of supporting that. In order to
bring up a
> second B channel, the second phone call must be placed. Bonding
multiple
> channels is a PPP function, not an ISDN function. So there is no
D-channel
> message or command to simply bring up the second line.
>
> Watch the 'debug isdn q931' output and observe a completely separate
phone
> call. If the switch supports multiple calls, it may work to the same
> initial phone number as the first call. If not, there will be a pause
and
> you'll need a second dialer map to complete the second call. You
would see
> "user busy" in the debug output if this is the case.
>
> HTH,
>
> Scott
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of John
> Matus
> Sent: Friday, July 15, 2005 11:04 PM
> To: Dillon Yang; Group Study
> Subject: Re: ONLY one SPID on PPP multilink
>
> dillon,
> when talking about 1 (one) isdn circuit you are by definition talking
about
> (2) b channels. you don't need to do anything else except for setting
a
> multilink and a load threshold. the second spid (i would hazard a
guess)
> would apply to the second bri interface that would have 2 more b
channels.
> there is a difference between placing another call and bringing up a
second
> b-channel.
>
>
> Regards,
>
> John D. Matus
> MCSE, CCNP
> Office: 818-782-2061
> Cell: 818-430-8372
> jmatus@pacbell.net
> ----- Original Message -----
> From: "Dillon Yang" <dillony@gmail.com>
> To: "Group Study" <ccielab@groupstudy.com>
> Sent: Friday, July 15, 2005 7:50 PM
> Subject: ONLY one SPID on PPP multilink
>
>
> > Hi, group:
> >
> > Generally, we can map two numbers to a destination IP to make the
second
> > channel, but how can we initiate the seconde channel with ONLY one
SPID
> > set in the ISDN simulation already?
> >
> >
> > [two SPIDs]
> > !
> > interface BRI0/0
> > ip address 172.16.12.1 255.255.255.0
> > encapsulation ppp
> > ip ospf demand-circuit
> > dialer idle-timeout 60
> > dialer map ip 172.16.12.2 name R2 broadcast 1001018
> > dialer map ip 172.16.12.2 name R2 broadcast 1001019
> > dialer-group 1
> > isdn switch-type basic-ni
> > isdn spid1 77710010160101 1001016
> > isdn spid2 77710010170101 1001017
> > no peer neighbor-route
> > ppp authentication chap callout
> > !
> >
> > [ONE SPIDs]
> > ???
> >
> > TIA
> > dillon
> >
> >
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