Dit document biedt een voorbeeldconfiguratie voor ISDN Basic Rate Interface (BRI) en illustreert Cisco-routergedrag met betrekking tot het onderhandelingsproces voor terminaal-endpointherkenning (TEI).
Er zijn geen specifieke vereisten van toepassing op dit document.
De informatie in dit document is gebaseerd op de volgende software- en hardware-versies:
Cisco IOS?? IOS-softwarerelease 12.2(6)ST.
Alle hardwareplatforms.
Opmerking: De opdracht SISDN-onderhandeling is geïntroduceerd in Cisco IOS-softwarereleases 12.2(6)T en 12.2(6)T.
De informatie in dit document is gebaseerd op de apparaten in een specifieke laboratoriumomgeving. Alle apparaten die in dit document worden beschreven, hadden een opgeschoonde (standaard)configuratie. Als uw netwerk live is, moet u de potentiële impact van elke opdracht begrijpen.
Raadpleeg voor meer informatie over documentconventies de technische Tips van Cisco.
In sommige Europese landen (zoals België en Nederland) is de gebruikelijke praktijk dat de telefoonmaatschappij (Telco) ISDN Layer 1 afsluit wanneer de BRI-lijn gedurende een bepaalde periode niet actief is geweest, vanwege energiebesparende redenen. Deze alternatieven zijn mogelijk:
TEI's die al zijn toegewezen kunnen worden bewaard nadat Layer 1 stopt met flappen.
De Cisco IOS-software kan worden geconfigureerd om de TEI opnieuw te onderhandelen telkens wanneer Layer 1 flakkert.
Deze sectie bevat informatie over het configureren van de functies die in dit document worden beschreven.
N.B.: Als u aanvullende informatie wilt vinden over de opdrachten in dit document, gebruikt u het Opdrachtplanningprogramma (alleen geregistreerd klanten).
Het netwerk in dit document is als volgt opgebouwd:
In dit voorbeeld gebruiken we twee Cisco 2500 routers met BRI-lijnen.
Dit document gebruikt deze configuraties:
kevin
krimson
kevin |
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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 |
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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 |
Deze sectie verschaft informatie die u kunt gebruiken om te bevestigen dat uw configuratie correct werkt.
Bepaalde opdrachten met show worden ondersteund door de tool Output Interpreter (alleen voor geregistreerde klanten). Hiermee kunt u een analyse van de output van opdrachten met show genereren.
ISDN status tonen?? geeft de status van alle ISDN-interfaces weer.
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
Deze sectie bevat informatie waarmee u problemen met de configuratie kunt oplossen.
Opmerking: Voordat u debug-opdrachten afgeeft, raadpleegt u Belangrijke informatie over Debug Commands.
debug ISDN q921??? toont de toegangsprocedures op de datalink-laag (Layer 2) die worden toegepast op de router in het D-kanaal (LAPD) van de ISDN-interface.
debug ISDN q931??? geeft informatie weer over de installatie van oproepen en de uitschakeling van ISDN-netwerkverbindingen (Layer 3), tussen de lokale router (gebruikerszijde) en het netwerk.
debug ISDN-gebeurtenissen?? toont ISDN-gebeurtenissen die zich aan de gebruikerszijde (op de router) van de ISDN-interface voordoen.
debug bri?? toont debuginformatie bij ISDN BRI routing activiteit.
Hier is de debug-uitvoer op 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
Revisie | Publicatiedatum | Opmerkingen |
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1.0 |
09-Sep-2005 |
Eerste vrijgave |