이 문서에서는 ISDN BRI(Basic Rate Interface)에 대한 샘플 컨피그레이션을 제공하며 TEI(Terminal Endpoint Identifier) 협상 프로세스와 관련된 Cisco 라우터 동작을 설명합니다.
이 문서에 대한 특정 요건이 없습니다.
이 문서의 정보는 다음 소프트웨어 및 하드웨어 버전을 기반으로 합니다.
Cisco IOS? 소프트웨어 릴리스 12.2(6).
모든 하드웨어 플랫폼.
참고: isdn tei-negotiation preserve 명령은 Cisco IOS Software 릴리스 12.2(6) 및 12.2(6)T에 도입되었습니다.
이 문서의 정보는 특정 랩 환경의 디바이스를 토대로 작성되었습니다. 이 문서에 사용된 모든 디바이스는 초기화된(기본) 컨피그레이션으로 시작되었습니다. 현재 네트워크가 작동 중인 경우, 모든 명령어의 잠재적인 영향을 미리 숙지하시기 바랍니다.
문서 표기 규칙에 대한 자세한 내용은 Cisco 기술 팁 표기 규칙을 참조하십시오.
일부 유럽 국가(예: 벨기에, 네덜란드)에서는 일반적으로 BRI 회선이 일정 기간 활성 상태가 아닐 때 절전 이유로 전화 회사(Telco)가 ISDN Layer1의 연결을 끊습니다. 다음과 같은 대안이 가능합니다.
이미 할당된 TEI는 레이어 1이 플랩을 중지한 후 보존할 수 있습니다.
Cisco IOS Software는 레이어 1이 플랩될 때마다 TEI를 재협상하도록 구성할 수 있습니다.
이 섹션에는 이 문서에서 설명하는 기능을 구성하기 위한 정보가 표시됩니다.
참고: 이 문서에 사용된 명령에 대한 추가 정보를 찾으려면 명령 조회 도구(등록된 고객만 해당)를 사용합니다.
이 문서에서는 다음 네트워크 설정을 사용합니다.
이 예에서는 BRI 회선과 함께 두 개의 Cisco 2500 라우터를 사용합니다.
이 문서에서는 다음 구성을 사용합니다.
케빈
크리슨
케빈 |
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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 |
크리슨 |
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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 |
이 섹션에서는 컨피그레이션이 제대로 작동하는지 확인하는 데 사용할 수 있는 정보를 제공합니다.
일부 show 명령은 출력 인터프리터 툴 에서 지원되는데(등록된 고객만), 이 툴을 사용하면 show 명령 출력의 분석 결과를 볼 수 있습니다.
show isdn status??는 모든 ISDN 인터페이스의 상태를 표시합니다.
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
이 섹션에서는 컨피그레이션 문제를 해결하는 데 사용할 수 있는 정보를 제공합니다.
참고: debug 명령을 실행하기 전에 디버그 명령에 대한 중요 정보를 참조하십시오.
debug isdn q921??는 ISDN 인터페이스의 LAPD(D Channel)에 있는 라우터에서 발생하는 데이터 링크 레이어(레이어 2) 액세스 절차를 표시합니다.
debug isdn q931??는 로컬 라우터(사용자측)와 네트워크 간의 ISDN 네트워크 연결(레이어 3)의 통화 설정 및 해제 정보를 표시합니다.
debug isdn events??는 ISDN 인터페이스의 사용자 측(라우터에 있음)에서 발생하는 ISDN 이벤트를 표시합니다.
debug bri???는 ISDN BRI 라우팅 활동에 대한 디버깅 정보를 표시합니다.
다음은 kevin의 디버그 출력입니다.
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
개정 | 게시 날짜 | 의견 |
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1.0 |
09-Sep-2005 |
최초 릴리스 |