このドキュメントでは、MUX-PPP とサブネットワーク アクセス プロトコル（SNAP）をサポートし、ATM ilmi PVC ディスカバリ サブインターフェイスを使用する Cisco 6400 ユニバーサル アクセス コンセントレータ（UAC）の設定例について説明します。
このドキュメントに特有の要件はありません。
このドキュメントの内容は、特定のソフトウェアやハードウェアのバージョンに限定されるものではありません。
このドキュメントの情報は、特定のラボ環境にあるデバイスに基づいて作成されました。このドキュメントで使用するすべてのデバイスは、初期（デフォルト）設定の状態から起動しています。対象のネットワークが実稼働中である場合には、どのようなコマンドについても、その潜在的な影響について確実に理解しておく必要があります。
ドキュメント表記の詳細は、「シスコ テクニカル ティップスの表記法」を参照してください。
このセクションでは、このドキュメントで説明する機能を設定するために必要な情報を提供しています。
注：この文書で使用されているコマンドの詳細を調べるには、「Command Lookup ツール」を使用してください（登録ユーザのみ）。
このドキュメントでは、次の設定を使用しています。
| Cisco 6400 NRP1 |
|---|
! version 12.0 no service pad service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname Access-6400-NRP1 ! enable password <password> ! username <username> password 0 <password> username <username1> password 0 <password1> username <username2> password 0 <password2> ! ! ! ! redundancy main-cpu auto-sync standard no secondary console enable ip subnet-zero ip domain-name cisco.com ip name-server 171.68.10.70 ! ! ! bridge irb ! ! process-max-time 200 ! interface Loopback1 ip address 10.1.1.1 255.255.255.0 no ip directed-broadcast ! interface ATM0/0/0 no ip address no ip directed-broadcast no atm ilmi-keepalive atm ilmi-pvc-discovery subinterface pvc 0/16 ilmi ! ! interface ATM0/0/0.1 multipoint !--- For VPI starting with number 1 (example: 1/34). no ip directed-broadcast class-int bridge1 bridge-group 1 ! interface ATM0/0/0.4 multipoint !--- For VPI starting with number 4 (example: 4/33). no ip directed-broadcast class-int router ! interface Ethernet0/0/1 no ip address no ip directed-broadcast ! interface Ethernet0/0/0 ip address 171.68.186.117 255.255.255.240 no ip directed-broadcast ! interface FastEthernet0/0/0 no ip address no ip directed-broadcast shutdown ! interface Virtual-Template1 ip unnumbered Loopback1 no ip directed-broadcast peer default ip address pool mypool ppp authentication chap ! interface BVI1 mac-address ip address 10.10.33.1 255.255.255.0 no ip directed-broadcast ! ip local pool mypool 10.1.1.2 10.1.1.200 ip classless ip route 0.0.0.0 0.0.0.0 171.68.186.113 no ip http server ! ! vc-class atm bridge1 encapsulation aal5snap ! vc-class atm router encapsulation aal5mux ppp Virtual-Template1 tacacs-server host 171.68.201.249 tacacs-server last-resort succeed tacacs-server optional-passwords tacacs-server extended ! bridge 1 protocol ieee bridge 1 route ip ! line con 0 transport input none line aux 0 line vty 0 4 password xxxxxx login local ! end |
ここでは、設定が正しく機能していることを確認するために使用する情報を示します。
一部の show コマンドはアウトプット インタープリタ ツールによってサポートされています（登録ユーザ専用）。このツールを使用することによって、show コマンド出力の分析結果を表示できます。
show atm pvc コマンド出力
Access-6400-NRP1# show atm pvc
VCD / Peak Avg/Min Burst
Interface Name VPI VCI Type Encaps SC Kbps Kbps Cells Sts
0/0/0 2 0 16 PVC ILMI UBR 155000 UP
0/0/0.1 7 1 34 PVC-D SNAP UBR 155000 UP
!--- Snap (bridge). !--- Subinterface 1 took VPI .
0/0/0.4 8 4 33 PVC-D MUX UBR 155000 UP
!--- mux (ppp) !--- Subinterface 4 took VPI 4.
ここでは、設定のトラブルシューティングに使用できる情報を示します。
一部の show コマンドはアウトプット インタープリタ ツールによってサポートされています（登録ユーザ専用）。このツールを使用することによって、show コマンド出力の分析結果を表示できます。
注：debugコマンドを発行する前に、『debugコマンドの重要な情報』を参照してください。
ATM イベントのデバッグ
次の出力は、ノードルートプロセッサ(NRP)がノードスイッチプロセッサ(NSP)から学習した仮想パス識別子/仮想チャネル識別子(VPI/VCI)を示しています。
Access-6400-NRP1# debug atm events ATM events debugging is on Shut/no Shut on main ATM0/0/0 interface Access-6400-NRP1# *Dec 16 15:51:43.667: ATM0/0/0 nrp_sarmgr_shutdown: state=0 *Dec 16 15:51:44.515: Resetting ATM0/0/0 *Dec 16 15:51:45.015: Resetting ATM0/0/0 *Dec 16 15:51:45.015: nrp_sarmgr_config(ATM0/0/0) *Dec 16 15:51:45.015: nrp_sarmgr_enable(ATM0/0/0 *Dec 16 15:51:45.215: nrp_sarmgr_enable(ATM0/0/0): restarting VCs: 0 *Dec 16 15:51:45.215: nrp_sarmgr_setup_vc(ATM0/0/0): vc:2 vpi:0 vci:16 *Dec 16 15:51:45.223: %SYS-5-CONFIG_I: Configured from console by console *Dec 16 15:51:45.667: %LINK-3-UPDOWN: Interface ATM0/0/0, changed state to up *Dec 16 15:51:46.667: %LINEPROTO-5-UPDOWN: Line protocol on Interface ATM0/0/0, changed state to up *Dec 16 15:51:47.219: %LINK-3-UPDOWN: Interface BVI1, changed state to up *Dec 16 15:51:47.471: Reserved bw for 1/34 Available bw = 155000 *Dec 16 15:51:47.471: nrp_sarmgr_setup_vc(ATM0/0/0): vc:13 vpi:1 vci:34 *Dec 16 15:51:47.475: Reserved bw for 4/33 Available bw = 155000 *Dec 16 15:51:47.527: nrp_sarmgr_setup_vc(ATM0/0/0): vc:14 vpi:4 vci:33 *Dec 16 15:51:48.219: %LINEPROTO-5-UPDOWN: Line protocol on Interface BVI1, changed state to up *Dec 16 15:51:49.019: nrp_sarmgr_teardown_vc(ATM0/0/0): vc:13 vpi:1 vci:34 *Dec 16 15:51:49.179: nrp_sarmgr_teardown_vc(ATM0/0/0): vc:14 vpi:4 vci:33 *Dec 16 15:51:49.339: PPP-ATM(Virtual-Access1) deleting vaccess on VC 14 *Dec 16 15:51:49.351: %LANE-6-INFO: ATM0/0/0: ILMI prefix add event received *Dec 16 15:51:49.659: Reserved bw for 1/34 Available bw = 155000 *Dec 16 15:51:49.659: nrp_sarmgr_setup_vc(ATM0/0/0): vc:15 vpi:1 vci:34 *Dec 16 15:51:49.659: Reserved bw for 4/33 Available bw = 155000 *Dec 16 15:51:49.715: nrp_sarmgr_setup_vc(ATM0/0/0): vc:16 vpi:4 vci:33 *Dec 16 15:51:55.419: %LINK-3-UPDOWN: Interface Virtual-Access1, changed state to up Access-6400-NRP1#
IP ルーティングモードにおける Cisco 675 のためのPPP デバッグ出力
Success rate is 0 percent (0/5) Access-6400-NRP1# *Dec 16 15:38:03.439: Vi1 LCP: I CONFREQ [Open] id 42 len 14 *Dec 16 15:38:03.439: Vi1 LCP: MagicNumber 0xA60C0000 (0x0506A60C0000) *Dec 16 15:38:03.439: Vi1 LCP: MRU 2048 (0x01040800) *Dec 16 15:38:03.439: Vi1 IPCP: State is Closed *Dec 16 15:38:03.439: Vi1 PPP: Phase is ESTABLISHING *Dec 16 15:38:03.439: Vi1 LCP: O CONFREQ [Open] id 132 len 15 *Dec 16 15:38:03.439: Vi1 LCP: AuthProto CHAP (0x0305C22305) *Dec 16 15:38:03.439: Vi1 LCP: MagicNumber 0x30995E50 (0x050630995E50) *Dec 16 15:38:03.439: Vi1 LCP: O CONFACK [Open] id 42 len 14 *Dec 16 15:38:03.439: Vi1 LCP: MagicNumber 0xA60C0000 (0x0506A60C0000) *Dec 16 15:38:03.439: Vi1 LCP: MRU 2048 (0x01040800) *Dec 16 15:38:03.443: Vi1 IPCP: Remove route to 10.1.1.2 *Dec 16 15:38:03.443: Vi1 LCP: I CONFACK [ACKsent] id 132 len 15 *Dec 16 15:38:03.443: Vi1 LCP: AuthProto CHAP (0x0305C22305) *Dec 16 15:38:03.443: Vi1 LCP: MagicNumber 0x30995E50 (0x050630995E50) *Dec 16 15:38:03.447: Vi1 LCP: State is Open *Dec 16 15:38:03.447: Vi1 PPP: Phase is AUTHENTICATING, by this end *Dec 16 15:38:03.447: Vi1 CHAP: O CHALLENGE id 4 len 37 from "Access-6400-NRP1" *Dec 16 15:38:03.451: Vi1 CHAP: I RESPONSE id 4 len 26 from "cisco" *Dec 16 15:38:03.451: Vi1 CHAP: O SUCCESS id 4 len 4 *Dec 16 15:38:03.451: Vi1 PPP: Phase is UP *Dec 16 15:38:03.451: Vi1 IPCP: O CONFREQ [Closed] id 5 len 16 *Dec 16 15:38:03.451: Vi1 IPCP: Address 10.1.1.1 (0x03060A010101) *Dec 16 15:38:03.451: Vi1 IPCP: Type20 (0x900600000000) *Dec 16 15:38:03.455: Vi1 IPCP: I CONFREQ [REQsent] id 43 len 10 *Dec 16 15:38:03.455: Vi1 IPCP: Address 10.1.1.2 (0x03060A010102) *Dec 16 15:38:03.455: Vi1 IPCP: O CONFACK [REQsent] id 43 len 10 *Dec 16 15:38:03.455: Vi1 IPCP: Address 10.1.1.2 (0x03060A010102) *Dec 16 15:38:03.455: Vi1 IPCP: I CONFREJ [ACKsent] id 5 len 10 *Dec 16 15:38:03.455: Vi1 IPCP: Type20 (0x900600000000) *Dec 16 15:38:03.455: Vi1 IPCP: O CONFREQ [ACKsent] id 6 len 10 *Dec 16 15:38:03.455: Vi1 IPCP: Address 10.1.1.1 (0x03060A010101) *Dec 16 15:38:03.463: Vi1 IPCP: I CONFACK [ACKsent] id 6 len 10 *Dec 16 15:38:03.463: Vi1 IPCP: Address 10.1.1.1 (0x03060A010101) *Dec 16 15:38:03.463: Vi1 IPCP: State is Open *Dec 16 15:38:03.463: Vi1 IPCP: Install route to 10.1.1.2
Show コマンドの出力
Access-6400-NRP1# show user Line User Host(s) Idle Location * 0 con 0 idle 00:00:00 Vi1 Virtual PPP (ATM) 00:06:45 Interface User Mode Idle Peer Address Access-6400-NRP1# show interface atm 0/0/0 accounting ATM0/0/0 Protocol Pkts In Chars In Pkts Out Chars Out Trans. Bridge 0 0 3 222 Spanning Tree 0 0 1384 65048 PPP over ATM 358 6646 605 11657 Access-6400-NRP1# show interface atm 0/0/0 ATM0/0/0 is up, line protocol is up Hardware is ATM-SAR MTU 4470 bytes, sub MTU 4470, BW 156250 Kbit, DLY 80 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ATM, loopback not supported Keepalive not supported Encapsulation(s): AAL5, PVC mode 2047 maximum active VCs, 3 current VCCs VC idle disconnect time: 300 seconds Last input 00:09:37, output 00:00:00, output hang never Last clearing of "show interface" counters never Queueing strategy: fifo Output queue 0/40, 0 drops; input queue 0/75, 0 drops 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 1307 packets input, 57832 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 2876 packets output, 123055 bytes, 0 underruns 0 output errors, 0 collisions, 3 interface resets 0 output buffer failures, 0 output buffers swapped out Access-6400-NRP1# Access-6400-NRP1# Access-6400-NRP1# Access-6400-NRP1# show interface atm 0/0/0.1 ATM0/0/0.1 is up, line protocol is up Hardware is ATM-SAR MTU 4470 bytes, BW 156250 Kbit, DLY 80 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ATM 0 packets input, 0 bytes 1392 packets output, 59937 bytes 0 OAM cells input, 0 OAM cells output Access-6400-NRP1# show interface atm 0/0/0.4 ATM0/0/0.4 is up, line protocol is up Hardware is ATM-SAR MTU 4470 bytes, BW 156250 Kbit, DLY 80 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ATM 705 packets input, 11705 bytes 615 packets output, 9415 bytes 0 OAM cells input, 0 OAM cells output Access-6400-NRP1# show atm vc 15 ATM0/0/0.1: VCD: 15, VPI: 1, VCI: 34 UBR, PeakRate: 155000 AAL5-LLC/SNAP, etype:0x0, Flags: 0xC20, VCmode: 0x0 OAM frequency: 0 second(s) InARP frequency: 15 minutes(s) InPkts: 0, OutPkts: 321, InBytes: 0, OutBytes: 13803 InPRoc: 0, OutPRoc: 321, Broadcasts: 0 InFast: 0, OutFast: 0, InAS: 0, OutAS: 0 OAM cells received: 0 OAM cells sent: 0 Status: UP Access-6400-NRP1# Access-6400-NRP1# show atm vc 16 ATM0/0/0.4: VCD: 16, VPI: 4, VCI: 33 UBR, PeakRate: 155000 AAL5-MUX, etype:0x9, Flags: 0xC23, VCmode: 0x0 OAM frequency: 0 second(s) InARP DISABLED InPkts: 6, OutPkts: 143, InBytes: 48, OutBytes: 2420 InPRoc: 3, OutPRoc: 143 InFast: 0, OutFast: 0, InAS: 3, OutAS: 0 OAM cells received: 0 OAM cells sent: 0 Status: UP PPP: Virtual-Access1 from Virtual-Template1 Access-6400-NRP1# Access-6400-NRP1# show interface virtual-access 1 Virtual-Access1 is up, line protocol is down Hardware is Virtual Access interface Interface is unnumbered. Using address of Loopback1 (10.1.1.1) MTU 1500 bytes, BW 100000 Kbit, DLY 100000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, loopback not set Keepalive set (10 sec) DTR is pulsed for 5 seconds on reset LCP REQsent Closed: IPCP Bound to ATM0/0/0.4 VCD: 16, VPI: 4, VCI: 33 Cloned from virtual-template: 1 Last input 00:12:07, output never, output hang never Last clearing of "show interface" counters 00:12:18 Queueing strategy: fifo > Output queue 0/40, 0 drops; input queue 0/75, 0 drops 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 3 packets input, 18 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 158 packets output, 2675 bytes, 0 underruns 0 output errors, 0 collisions, 0 interface resets 0 output buffer failures, 0 output buffers swapped out 0 carrier transitions Access-6400-NRP1#