Composition et accès : "Réseaux numériques à intégration de services (RNIS), canal de signalisation associé (CAS)"

Négociation d'identificateur de point de terminaison de terminal BRI RNIS

17 décembre 2015 - Traduction automatique
Autres versions: PDFpdf | Anglais (22 août 2015) | Commentaires


Contenu


Introduction

Ce document fournit une configuration d'échantillon pour l'accès de base (BRI) RNIS, et montre le comportement de routeur de Cisco en ce qui concerne le procédé de négociation de l'indentifiant de point de terminaison de terminal (TEI).

Conditions préalables

Conditions requises

Aucune spécification déterminée n'est requise pour ce document.

Composants utilisés

Les informations contenues dans ce document sont basées sur les versions de matériel et de logiciel suivantes :

  • Cisco IOS ? ? Version de logiciel 12.2(6).

  • Toutes les plates-formes matérielles.

Remarque: La commande de conserve de tei-négociation RNIS a été introduite dans les versions du logiciel Cisco IOS 12.2(6) et le 12.2(6)T.

Les informations contenues dans ce document ont été créées à partir des périphériques d'un environnement de laboratoire spécifique. Tous les périphériques utilisés dans ce document ont démarré avec une configuration effacée (par défaut). Si votre réseau est opérationnel, assurez-vous que vous comprenez l'effet potentiel de toute commande.

Conventions

Pour plus d'informations sur les conventions utilisées dans ce document, reportez-vous aux Conventions relatives aux conseils techniques Cisco.

Informations générales

Quelques pays européens (comme, en Belgique et en Hollande), la pratique habituelle est que l'opérateur téléphonique (compagnie de téléphone) déconnecte le RNIS Layer1 quand la ligne BRI n'a pas été en activité pendant une certaine période, dû à l'économie d'énergie raisonne. Ces solutions de rechange sont possibles :

  • TEIs qui ont été déjà assignés peut être préservé après que la couche 1 arrête le lien instable.

  • Le Cisco IOS que le logiciel peut être configuré pour renégocier le TEI pose chaque fois les instabilités 1.

Configurez

Cette section vous fournit des informations pour configurer les fonctionnalités décrites dans ce document.

Remarque: Pour obtenir des informations supplémentaires sur les commandes utilisées dans ce document, utilisez l'Outil de recherche de commande (clients enregistrés seulement).

Diagramme du réseau

Ce document utilise la configuration réseau suivante :

/image/gif/paws/12073/bri_isdn_callback.gif

Dans cet exemple, nous utilisons deux Routeurs de Cisco 2500 avec des lignes BRI.

Configurations

Ce document utilise les configurations suivantes :

  • Kevin

  • krimson

Kevin
kevin#show running-config
!
version 12.2                                                
service timestamps debug datetime msec
service timestamps log datetime msec
hostname kevin
!
username krimson password 
!
isdn switch-type basic-net3
!
interface BRI0
no ip address
encapsulation ppp
dialer rotary-group 1
dialer-group 1
isdn switch-type basic-net3
isdn tei-negotiation preserve
no cdp enable
ppp authentication chap
!
interface Dialer1
ip address 10.9.8.2 255.255.255.0
encapsulation ppp
dialer in-band
dialer map ip 10.9.8.1 name krimson 027208196
dialer-group 1
no cdp enable
ppp authentication chap
!
dialer-list 1 protocol ip permit
!
line con 0
 exec-timeout 0 0
line aux 0
line vty 0 4
 exec-timeout 0 0
 password 
 login
!
end

krimson
krimson#show running-config
!
version 12.2                                                
!
service timestamps debug datetime msec
service timestamps log datetime msec
!
hostname krimson
!
username kevin password 
!
isdn switch-type basic-net3
!
interface BRI0
no ip address
encapsulation ppp
no ip route-cache
no ip mroute-cache
no keepalive
dialer rotary-group 1
isdn switch-type basic-net3
no fair-queue
no cdp enable
ppp authentication chap
!
interface Dialer1
ip address 10.9.8.1 255.255.255.0
encapsulation ppp
no ip route-cache
no ip mroute-cache
load-interval 30
no keepalive
dialer in-band
dialer map ip 10.9.8.2 name kevin 027202094
dialer-group 1
no fair-queue
no cdp enable
ppp authentication chap
!
dialer-list 1 protocol ip permit
!
line con 0
 exec-timeout 0 0
line aux 0
line vty 0 4
 exec-timeout 0 0
 password 
 login
!
end

Vérifiez

Cette section présente des informations que vous pouvez utiliser pour vous assurer que votre configuration fonctionne correctement.

Certaines commandes show sont prises en charge par l'Output Interpreter Tool (clients enregistrés uniquement), qui vous permet de voir une analyse de la sortie de la commande show.

  • état de show isdn ? ? ? affiche le statut de toutes les interfaces RNIS.

kevin#show isdn status
Global ISDN Switchtype = basic-net3
ISDN BRI0 interface
dsl 0, interface ISDN Switchtype = basic-net3
Layer 1 Status:
DEACTIVATED
Layer 2 Status:
Layer 2 NOT Activated  

!--- TEI is removed

Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 0 CCBs = 0
The Free Channel Mask:  0x3
Number of L2 Discards = 0, L2 Session ID = 10
Total Allocated ISDN CCBs = 0

Dépannez

Cette section fournit des informations que vous pouvez utiliser pour dépanner votre configuration.

Dépannage des commandes

Remarque: Avant d'émettre des commandes de débogage, référez-vous aux informations importantes sur des commandes de debug.

  • mettez au point la couche liaison de données RNIS q921???displays (les procédures d'accès de couche 2) qui ont lieu au routeur sur le canal D (LAPD) de son interface RNIS.

  • mettez au point les informations RNIS q931???displays sur l'établissement d'appel et le démontage de la connexion réseau RNIS (couche 3), entre le routeur local (côté utilisateur) et le réseau.

  • debug isdn event ? ? ? événements RNIS d'affichages se produisant du côté utilisateur (sur le routeur) de l'interface RNIS.

  • mettez au point le bri ? ? ? affiche les informations de débogage sur l'activité de routage RNIS BRI.

Voici la sortie de débogage sur Kevin :

kevin#
*Mar  1 03:04:14.235: BRI: write_sid: scp = 0, wrote = 92
*Mar  1 03:04:14.235: BRI: write_sid: scp = 80, wrote = 93
*Mar  1 03:04:14.239: BRI0: DEACTIVATED, state F1, event LSD
*Mar  1 03:04:14.243: BRI: write_sid: scp = 0, wrote = 1B
*Mar  1 03:04:14.243: BRI: write_sid: scp = 0, wrote = 20
*Mar  1 03:04:14.243: BRI: write_sid: scp = 0, wrote = 92
*Mar  1 03:04:14.247: BRI: write_sid: scp = A0, wrote = 93
*Mar  1 03:04:14.247: BRI0: DEACTIVATED, state F3, event AP
*Mar  1 03:04:14.251: BRI: write_sid: scp = 0, wrote = 3
*Mar  1 03:04:14.255: ISDN BR0: Recvd MPH_IIC_IND from L1
*Mar  1 03:04:14.263: BRI: write_sid: scp = 0, wrote = 92
*Mar  1 03:04:14.263: BRI: write_sid: scp = E0, wrote = 93
*Mar  1 03:04:14.267: BRI0: PENDING, state F7, event AI
*Mar  1 03:04:14.267: BRI: Received activation indication.
*Mar  1 03:04:14.271: Flush all frames in the queue if any
*Mar  1 03:04:14.275: ISDN BR0: L1 is IF_ACTIVE
*Mar  1 03:04:14.275: ISDN BR0 EVENT: isdn_sw_cstate: State = 4, Old State = 4
*Mar  1 03:04:14.279: ISDN BR0: Incoming call id = 0x0030, dsl 0
*Mar  1 03:04:14.319: ISDN BR0: TX -> IDREQ ri=65279 ai=127
*Mar  1 03:04:14.323: BRI: write_sid: scp = 0, wrote = E
*Mar  1 03:04:14.355: ISDN BR0: RX <- IDASSN ri=65279 ai=66
*Mar  1 03:04:14.375: ISDN BR0: TX -> SABMEp c/r=0 sapi=0 tei=66
*Mar  1 03:04:14.379: BRI: write_sid: scp = 0, wrote = E
*Mar  1 03:04:14.399: ISDN BR0: RX <- UI c/r=1 sapi=0 tei=127
i=0x08011C05A1040288901801896C0A218332373230383139367009A13237323032303934
*Mar  1 03:04:14.435: SETUP pd = 8  callref = 0x1C
*Mar  1 03:04:14.443:   Sending Complete
*Mar  1 03:04:14.443:   Bearer Capability i = 0x8890
*Mar  1 03:04:14.451:   Channel ID i = 0x89
*Mar  1 03:04:14.455:   Calling Party Number i = 0x21, 0x83,
'27208196', Plan:ISDN, Type:National
*Mar  1 03:04:14.475:   Called Party Number i = 0xA1, '27202094',
Plan:ISDN, Type:National
*Mar  1 03:04:14.495: ISDN BR0: RX <- UAf c/r=0 sapi=0 tei=66
*Mar  1 03:04:14.503: %ISDN-6-LAYER2UP: Layer 2 for Interface BR0, TEI 66
changed to up
*Mar  1 03:04:14.515: CCBRI_Go Fr L3 pkt (Len=35) :
*Mar  1 03:04:14.515: 5 1 9C 90 A1 4 2 88 90 18 1 89 6C A 21 83 32 37 32 30
38 31 39 36 70 9 A1 32 37 32 30 32 30 39 34
*Mar  1 03:04:14.527:
*Mar  1 03:04:14.531: ISDN BR0: Incoming call id = 0x0031, dsl 0
*Mar  1 03:04:14.535: ISDN BR0: LIF_EVENT: ces/callid 1/0x31
HOST_INCOMING_CALL
*Mar  1 03:04:14.543: ISDN BR0: HOST_INCOMING_CALL: (non-POTS) DATA
*Mar  1 03:04:14.543: ISDN BR0: HOST_INCOMING_CALL: (1) call_type = DATA
*Mar  1 03:04:14.547: ISDN BR0: HOST_INCOMING_CALL: voice_answer_data =
FALSE call type is DATA
*Mar  1 03:04:14.551: ISDN BR0: Event: Received a DATA call from 27208196
on B1 at 64 Kb/s
*Mar  1 03:04:14.551: ISDN BR0: Event: Accepting the call id 0x31
*Mar  1 03:04:14.555: ISDN BR0: RM returned call_type 0 resource type 0
response 1
*Mar  1 03:04:14.559: CCBRI_Go Fr Host InPkgInfo (Len=9) :
*Mar  1 03:04:14.563: 7 0 1 0 31 3 18 1 89
*Mar  1 03:04:14.567:
*Mar  1 03:04:14.575: ISDN BR0: isdn_send_connect(): msg 4, call id 0x31,
ces 1 bchan 0, call type DATA
*Mar  1 03:04:14.579: BRI: enable channel B1
*Mar  1 03:04:14.579: %LINK-3-UPDOWN: Interface BRI0:1, changed state to up
*Mar  1 03:04:14.591: ISDN: get_isdn_service_state(): idb 0x230B74 bchan 2
is_isdn 1 Not a Pri
*Mar  1 03:04:14.595: CCBRI_Go Fr Host InPkgInfo (Len=6) :
*Mar  1 03:04:14.599: 4 0 1 0 31 0
*Mar  1 03:04:14.603:
*Mar  1 03:04:14.615: ISDN BR0: TX -> INFOc sapi=0 tei=66 ns=0 nr=0
i=0x08019C02180189
*Mar  1 03:04:14.627: CALL_PROC pd = 8  callref = 0x9C
*Mar  1 03:04:14.631: Channel ID i = 0x89
*Mar  1 03:04:14.639: BRI: write_sid: scp = 0, wrote = E
*Mar  1 03:04:14.663: ISDN BR0: RX <- RRr sapi=0 tei=66 nr=1
*Mar  1 03:04:14.675: ISDN BR0: TX -> INFOc sapi=0 tei=66 ns=1 nr=0
i=0x08019C07
*Mar  1 03:04:14.679: CONNECT pd = 8  callref = 0x9C
*Mar  1 03:04:14.687: BRI: write_sid: scp = 0, wrote = E
*Mar  1 03:04:14.711: ISDN BR0: RX <- RRr sapi=0 tei=66 nr=2
*Mar  1 03:04:15.567: ISDN BR0: RX <- INFOc sapi=0 tei=66 ns=0 nr=2
i=0x08011C0F
*Mar  1 03:04:15.575: CONNECT_ACK pd = 8  callref = 0x1C
*Mar  1 03:04:15.595: ISDN BR0: TX -> RRr sapi=0 tei=66 nr=1
*Mar  1 03:04:15.595: BRI: write_sid: scp = 0, wrote = E
*Mar  1 03:04:15.619: CCBRI_Go Fr L3 pkt (Len=4) :
*Mar  1 03:04:15.619: F 1 9C 92
*Mar  1 03:04:15.623:
*Mar  1 03:04:15.627: ISDN BR0: LIF_EVENT: ces/callid 1/0x31 HOST_CONNECT
*Mar  1 03:04:15.631: BRI: enable channel B1
*Mar  1 03:04:15.631: ISDN BR0: Event: Connected to 27208196 on B1 at 64 Kb/s
*Mar  1 03:04:16.223: BR0:1 DDR: dialer protocol up
*Mar  1 03:04:17.187: %LINEPROTO-5-UPDOWN: Line protocol on Interface
BRI0:1, changed state to up
*Mar  1 03:04:20.591: %ISDN-6-CONNECT: Interface BRI0:1 is now connected to
027208196 krimson
*Mar  1 03:04:25.591: ISDN BR0: TX -> RRp sapi=0 tei=66 nr=1
*Mar  1 03:04:25.595: BRI: write_sid: scp = 0, wrote = E
*Mar  1 03:04:25.615: ISDN BR0: RX <- RRf sapi=0 tei=66 nr=2
kevin#show isdn status
Global ISDN Switchtype = basic-net3
ISDN BRI0 interface
dsl 0, interface ISDN Switchtype = basic-net3
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 66, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
I_Queue_Len 0, UI_Queue_Len 0
Layer 3 Status:
1 Active Layer 3 Call(s)
CCB:callid=31, sapi=0, ces=1, B-chan=1, calltype=DATA
Active dsl 0 CCBs = 1
The Free Channel Mask:  0x80000002
Number of L2 Discards = 0, L2 Session ID = 10
Total Allocated ISDN CCBs = 1
kevin#
*Mar  1 03:04:35.623: ISDN BR0: TX -> RRp sapi=0 tei=66 nr=1
*Mar  1 03:04:35.627: BRI: write_sid: scp = 0, wrote = E
*Mar  1 03:04:35.647: ISDN BR0: RX <- RRf sapi=0 tei=66 nr=2
*Mar  1 03:04:45.655: ISDN BR0: TX -> RRp sapi=0 tei=66 nr=1
*Mar  1 03:04:45.659: BRI: write_sid: scp = 0, wrote = E
*Mar  1 03:04:45.679: ISDN BR0: RX <- RRf sapi=0 tei=66 nr=2
*Mar  1 03:04:55.683: ISDN BR0: RX <- RRp sapi=0 tei=66 nr=2
*Mar  1 03:04:55.691: ISDN BR0: TX -> RRf sapi=0 tei=66 nr=1
*Mar  1 03:04:55.695: BRI: write_sid: scp = 0, wrote = E
*Mar  1 03:05:05.691: ISDN BR0: TX -> RRp sapi=0 tei=66 nr=1
*Mar  1 03:05:05.695: BRI: write_sid: scp = 0, wrote = E
*Mar  1 03:05:05.715: ISDN BR0: RX <- RRf sapi=0 tei=66 nr=2
*Mar  1 03:05:15.724: ISDN BR0: TX -> RRp sapi=0 tei=66 nr=1
*Mar  1 03:05:15.728: BRI: write_sid: scp = 0, wrote = E
*Mar  1 03:05:15.748: ISDN BR0: RX <- RRf sapi=0 tei=66 nr=2
*Mar  1 03:05:25.756: ISDN BR0: TX -> RRp sapi=0 tei=66 nr=1
*Mar  1 03:05:25.760: BRI: write_sid: scp = 0, wrote = E
*Mar  1 03:05:25.780: ISDN BR0: RX <- RRf sapi=0 tei=66 nr=2
*Mar  1 03:05:35.788: ISDN BR0: TX -> RRp sapi=0 tei=66 nr=1
*Mar  1 03:05:35.792: BRI: write_sid: scp = 0, wrote = E
*Mar  1 03:05:35.812: ISDN BR0: RX <- RRf sapi=0 tei=66 nr=2
*Mar  1 03:05:45.820: ISDN BR0: TX -> RRp sapi=0 tei=66 nr=1
*Mar  1 03:05:45.824: BRI: write_sid: scp = 0, wrote = E
*Mar  1 03:05:45.844: ISDN BR0: RX <- RRf sapi=0 tei=66 nr=2
*Mar  1 03:05:55.852: ISDN BR0: TX -> RRp sapi=0 tei=66 nr=1
*Mar  1 03:05:55.856: BRI: write_sid: scp = 0, wrote = E
*Mar  1 03:05:55.880: ISDN BR0: RX <- RRf sapi=0 tei=66 nr=2
*Mar  1 03:06:05.888: ISDN BR0: TX -> RRp sapi=0 tei=66 nr=1
*Mar  1 03:06:05.892: BRI: write_sid: scp = 0, wrote = E
*Mar  1 03:06:05.912: ISDN BR0: RX <- RRf sapi=0 tei=66 nr=2
*Mar  1 03:06:15.920: ISDN BR0: TX -> RRp sapi=0 tei=66 nr=1
*Mar  1 03:06:15.924: BRI: write_sid: scp = 0, wrote = E
*Mar  1 03:06:15.944: ISDN BR0: RX <- RRf sapi=0 tei=66 nr=2
*Mar  1 03:06:17.024: BR0:1 DDR: idle timeout
*Mar  1 03:06:17.028: BR0:1 DDR: disconnecting call
*Mar  1 03:06:17.028: ISDN BR0: Event: Hangup call to call id 0x31
*Mar  1 03:06:17.032: BRI: disable channel B1
*Mar  1 03:06:17.032: ISDN BR0: process_disconnect(): call id 0x31, call
type is DATA, b_idb 0x230B74, ces 1, cause Normal call clearing(0x10)
*Mar  1 03:06:17.040: %ISDN-6-DISCONNECT: Interface BRI0:1  disconnected
from 27208196 krimson, call lasted 122 seconds
*Mar  1 03:06:17.048: ISDN: get_isdn_service_state(): idb 0x230B74 bchan 2
is_isdn 1 Not a Pri
*Mar  1 03:06:17.052: CCBRI_Go Fr Host InPkgInfo (Len=13) :
*Mar  1 03:06:17.052: 5 0 1 0 31 3 8 1 90 8 2 80 90
*Mar  1 03:06:17.056:
*Mar  1 03:06:17.072: ISDN BR0: TX -> INFOc sapi=0 tei=66 ns=2 nr=1
i=0x08019C4508028090
*Mar  1 03:06:17.084:     DISCONNECT pd = 8  callref = 0x9C
*Mar  1 03:06:17.088:         Cause i = 0x8090 - Normal call clearing
*Mar  1 03:06:17.096: BRI: write_sid: scp = 0, wrote = E
*Mar  1 03:06:17.124: ISDN BR0: RX <- RRr sapi=0 tei=66 nr=3
*Mar  1 03:06:17.556: ISDN BR0: RX <- INFOc sapi=0 tei=66 ns=1 nr=3
i=0x08011C4D
*Mar  1 03:06:17.564:     RELEASE pd = 8  callref = 0x1C
*Mar  1 03:06:17.580: CCBRI_Go Fr L3 pkt (Len=4) :
*Mar  1 03:06:17.584: 4D 1 9C 97
*Mar  1 03:06:17.584:
*Mar  1 03:06:17.592: ISDN BR0: LIF_EVENT: ces/callid 1/0x31
HOST_DISCONNECT_ACK
*Mar  1 03:06:17.596: ISDN: get_isdn_service_state(): idb 0x230B74 bchan 2
is_isdn 1 Not a Pri
*Mar  1 03:06:17.600: ISDN BR0: HOST_DISCONNECT_ACK: call type is DATA
*Mar  1 03:06:17.604: BRI: disable channel B1
*Mar  1 03:06:17.604: %LINK-3-UPDOWN: Interface BRI0:1, changed state to
down
*Mar  1 03:06:17.612: BR0:1 DDR: disconnecting call
*Mar  1 03:06:17.616: ISDN BR0: LIF_EVENT: ces/callid 1/0x31
HOST_DISCONNECT_ACK
*Mar  1 03:06:17.620: ISDN: get_isdn_service_state(): idb 0x230B74 bchan 2
is_isdn 1 Not a Pri
*Mar  1 03:06:17.624: ISDN BR0: HOST_DISCONNECT_ACK: call type is DATA
*Mar  1 03:06:17.628: BRI: disable channel B1
*Mar  1 03:06:17.636: ISDN BR0: TX -> RRr sapi=0 tei=66 nr=2
*Mar  1 03:06:17.640: BRI: write_sid: scp = 0, wrote = E
*Mar  1 03:06:17.644: ISDN BR0: TX -> INFOc sapi=0 tei=66 ns=3 nr=2
i=0x08019C5A
*Mar  1 03:06:17.652: RELEASE_COMP pd = 8  callref = 0x9C
*Mar  1 03:06:17.660: BRI: write_sid: scp = 0, wrote = E
*Mar  1 03:06:17.684: ISDN BR0: RX <- RRr sapi=0 tei=66 nr=4
*Mar  1 03:06:18.940: %LINEPROTO-5-UPDOWN: Line protocol on Interface
BRI0:1, changed state to down
*Mar  1 03:06:27.693: ISDN BR0: TX -> RRp sapi=0 tei=66 nr=2
*Mar  1 03:06:27.697: BRI: write_sid: scp = 0, wrote = E
*Mar  1 03:06:27.717: ISDN BR0: RX <- RRf sapi=0 tei=66 nr=4
*Mar  1 03:06:32.781: ISDN BR0: RX <- DISCp c/r=1 sapi=0 tei=66
*Mar  1 03:06:32.785: %ISDN-6-LAYER2DOWN: Layer 2 for Interface BR0, TEI 66
changed to down
*Mar  1 03:06:32.793: ISDN BR0: TX -> UAf c/r=1 sapi=0 tei=66
*Mar  1 03:06:32.797: BRI: write_sid: scp = 0, wrote = E
kevin#show isdn status
Global ISDN Switchtype = basic-net3
ISDN BRI0 interface
dsl 0, interface ISDN Switchtype = basic-net3
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 66, Ces = 1, SAPI = 0, State = TEI_ASSIGNED  

!--- ISDN Layer 2 is disconnected

I_Queue_Len 0, UI_Queue_Len 0
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 0 CCBs = 0
The Free Channel Mask:  0x3
Number of L2 Discards = 0, L2 Session ID = 10
Total Allocated ISDN CCBs = 0
kevin#
*Mar  1 03:06:42.881: BRI: write_sid: scp = 0, wrote = 92
*Mar  1 03:06:42.885: BRI: write_sid: scp = 90, wrote = 93
*Mar  1 03:06:42.885: BRI0: ACTIVATED, state F2, event DI
*Mar  1 03:06:42.889: BRI: T4 timer started DEACT timer expired
*Mar  1 03:06:43.493: BRI: write_sid: scp = 0, wrote = 92
*Mar  1 03:06:43.493: BRI: write_sid: scp = 90, wrote = 93
*Mar  1 03:06:43.497: BRI: write_sid: scp = 0, wrote = 1
*Mar  1 03:06:43.497: BRI: write_sid: scp = 0, wrote = 0
*Mar  1 03:06:43.501: ISDN BR0 EVENT: isdn_sw_cstate: State = 0, Old State = 4
*Mar  1 03:06:43.505: BRI: disable channel B1
*Mar  1 03:06:43.505: BRI: disable channel B2
*Mar  1 03:06:43.509: ISDN BR0: Physical layer is IF_DOWN   
!--- ISDN Layer 1 deactivated due to no calls on BRI
*Mar  1 03:06:43.509: ISDN BR0: Shutting down ME
*Mar  1 03:06:43.513: ISDN BR0: Shutting down ISDN Layer 3
kevin#show isdn status
Global ISDN Switchtype = basic-net3
ISDN BRI0 interface
dsl 0, interface ISDN Switchtype = basic-net3
Layer 1 Status:
DEACTIVATED
Layer 2 Status:
TEI = 66, Ces = 1, SAPI = 0, State = TEI_ASSIGNED  

!--- TEI is preserved due to used configuration

I_Queue_Len 0, UI_Queue_Len 0
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 0 CCBs = 0
The Free Channel Mask:  0x3
Number of L2 Discards = 0, L2 Session ID = 11
Total Allocated ISDN CCBs = 0

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Document ID: 12073