配置OMPROUTE以在大型機上運行
目錄
簡介
本文檔概述了在大型機上運行OMPROUTE過程以與其他TCP/IP網路交換路由更新的主機和路由器配置示例。OMPROUTE通常與虛擬IP地址(VIPA)結合使用，它允許在客戶端中配置的大型機IP地址獨立於任何一個通道介面。這為通道提供了冗餘。最初，IBM的大型機TCP/IP實施僅支援路由資訊協定(RIP)作為路由協定，使用OROUTED過程。較新的OMPROUTE支援RIP V1或V2和開放最短路徑優先(OSPF)。IBM建議使用OMPROUTE而不是OROUTE，並且IBM最終將取消對OROUTE的支援。
必要條件
需求
本文件沒有特定需求。
採用元件
用於此組態的Cisco IOS®軟體版本為12.1(3a)T2（xCPA微碼27-9），這是測試此配置時的最新版本。但是，如果您使用的是CLAW，則它應該適用於任何版本的Cisco IOS軟體。CMPC+至少需要Cisco IOS軟體版本12.1T。
該路由器是帶xCPA埠介面卡的Cisco 7206。或者，如本文檔稍後所述，帶有CIP卡的Cisco 7500路由器可用於對配置進行細微更改。
本文中的資訊是根據特定實驗室環境內的裝置所建立。文中使用到的所有裝置皆從已清除（預設）的組態來啟動。如果您的網路正在作用，請確保您已瞭解任何指令可能造成的影響。
慣例
如需文件慣例的詳細資訊，請參閱思科技術提示慣例。
組態
大型機配置 — OMPROUTE檔案
大型機上的OMPROUTE配置與OROUTE的配置非常相似。OMPROUTE還至少使用兩個配置檔案。您必須使用以下兩個環境變數指向這些配置檔案在OMVS地址空間中的位置：
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export resolver_conf=/etc/resolv.conf
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export omproute_file=/etc/omproute.conf
以下是resolver_conf內容的範例：
TCPJobName TCPIP DomainOrigin cisco.com domain cisco.com Datasetprefix TCPIP HostName P390 Messagecase mixed
comproute_file將取決於是使用RIP還是OSPF。以下是RIP的配置示例：
; Originate_RIP_Default Condition=Always Cost=1 ; RIP_Interface IP_Address=10.64.3.34 Name=LDIPTG Subnet_Mask=255.255.255.240 Receive_Dynamic_Nets=YES Receive_Dynamic_Subnets=YES MTU=1470 Destination_Addr=10.64.3.33 ; RIP_Interface IP_Address=10.64.3.17 Name=VIPALINK Subnet_Mask=255.255.255.240 MTU=1470 ;
對於OSPF，有更多配置選項可用，其中包括使大型機充當末節區域的功能。當許多邏輯分割槽(LPAR)通過同一通道進行連線時，這可以顯著減少通道上的負載路由更新。範例如下：
Area Area_Number=0.0.0.0 Authentication_Type=None Stub_Area=NO ; Comparison=Type2 ; AS_Boundary_Routing Import_Subnet_Routes=YES Import_Direct_Routes=YES ; OSPF_Interface IP_Address=10.64.3.34 Name=LDIPTG Subnet_Mask=255.255.255.240 Attaches_To_Area=0.0.0.0 MTU=1470 Destination_Addr=10.64.3.33 Hello_Interval=30 Dead_Router_Interval=120 ; OSPF_Interface IP_Address=10.64.3.17 Name=VIPALINK Subnet_Mask=255.255.255.240
大型機配置 — TCP/IP堆疊
TCP/IP配置檔案資料集不需要OMPROUTE的任何特殊配置，除了必須註釋掉所有靜態和預設路由配置以及BSDROUTINGPARMS部分（僅由OROUTED使用）之外。 此解壓僅顯示必須註釋掉的內容以及OMPROUTE配置檔案引用的引數：
TCPIP Profile dataset --------------------- ----------------------------------------------------------------------- ; Hardware definitions: ----------------------------------------------------------------------- ; NOTE: To use these device and link statements, update the statements ; to reflect your installation configuration and remove the semicolon ; DEVICE DIPTG MPCPTP LINK LDIPTG MPCPTP DIPTG DEVICE VIPADEV VIRTUAL 0 LINK VIPALINK VIRTUAL 0 VIPADEV ; ; ; ----------------------------------------------------------------------- ; ; HOME Internet (IP) addresses of each link in the host. ; ; NOTE: To use this home statement, update the ipaddress and linknames ; to reflect your installation configuration and remove the semicolon ; HOME 10.64.3.17 VIPALINK 10.64.3.34 LDIPTG ; ----------------------------------------------------------------------- ; ; IP routing information for the host. All static IP routes should ; be added here. ; ; NOTE: To use this GATEWAY statement, update the addresses and links ; to reflect your installation configuration and remove the semicolon ; ; GATEWAY ; ; Direct Routes - Routes that are directly connected to my interfaces. ; ; Network First Hop Link Name Packet Size Subnet Mask Subnet Value ; 10 = CIS1 1500 0.255.255.0 0.101.1 ; 10 = LDIPTG 1500 0.255.255.240 0.64.3.32 ; 9 = LIS1 1500 0.255.255.0 0.117.56.0 ; 130.50 = TR1 2000 0.0.255.0 0.0.10.0 ; 193.5.2 = ETH1 1500 0 ; 9 = FDDI1 4000 0.255.255.0 0.67.43.0 ; 193.7.2.2 = SNA1 2000 HOST ; ; Indirect Routes - Routes that are reachable through routers on my ; network. ; ; Network First Hop Link Name Packet Size Subnet Mask Subnet Value ; DEFAULTNET 10.64.3.33 LDIPTG DEFAULTSIZE 0 ; 193.12.2 130.50.10.1 TR1 2000 0 ; 10.5.6.4 193.5.2.10 ETH1 1500 HOST ; ; Default Route - All packets to an unknown destination are routed ; through this route. ; ; Network First Hop Link Name Packet Size Subnet Mask Subnet Value ; DEFAULTNET 9.67.43.1 FDDI1 DEFAULTSIZE 0 ; ; ----------------------------------------------------------------------- ; ; orouted Routing Information ; ; if you are using orouted, comment out the GATEWAY statement and ; update the BSDROUTINGPARMS statement to reflect your installation ; configuration and remove the semicolon ; ; Link Maxmtu Metric Subnet Mask Dest Addr ; BSDROUTINGPARMS false ; LDIPTG 1500 0 255.255.255.240 10.64.3.33 ; VIPALINK 1500 0 255.255.255.240 0 ; TR1 2000 0 255.255.255.0 0 ; ETH1 1500 0 255.255.255.0 0 ; FDDI1 DEFAULTSIZE 0 255.255.255.0 0 ; ENDBSDROUTINGPARMS !--- Note that all of the last two sections have been commented out.
大型機配置 — VTAM定義和啟動TCP/IP
路由更新可以通過CLAW或CMPC+連線交換。如果使用CLAW ，則不需要在大型機上執行其他配置。此範例使用CMPC，它需要VTAM傳輸資源清單(TRL)專案。以下是VTAM成員：
DIPTGTRL VBUILD TYPE=TRL * * DIPTG TRLE LNCTL=MPC,MAXBFRU=16,READ=(E24),WRITE=(E25) *
TRL必須在啟動TCPIP啟動任務之前啟用。例如：
V NET,ACT,ID=DIPTRL1,UPDATE=ALL IST097I VARY ACCEPTED ISTTRL ACTIVE
然後使用S TCPIP MVS控制檯命令啟用TCP/IP啟動任務。運行TCP/IP啟動任務後，OMPROUTE過程即可啟動，或者使用作業控制語言(JCL)作為啟動任務，或者從OMVS地址空間內啟動。要在OMVS中啟動，請發出以下命令：
cd /usr/lpp/tcpip/sbin omproute &
要檢查OMPROUTE是否正在運行，請發出以下控制檯命令，其中p390是啟動OMPROUTE守護程式的使用者ID:
d omvs,u=p390
路由器配置
必須將CLAW和CMPC專門配置為使用broadcast關鍵字通過通道傳送廣播。例如，對於CLAW:
claw 0100 20 10.101.1.10 P390D C7000D TCPIP TCPIP broadcast
在本例中，CMPC+正在使用中，因此以下是路由器配置的相關部分：
! interface Channel2/0 ip address 10.64.3.33 255.255.255.240 ip ospf network point-to-multipoint no keepalive cmpc 0100 24 DIPTG READ cmpc 0100 25 DIPTG WRITE tg DIPTG ip 10.64.3.34 10.64.3.33 broadcast router ospf 1 network 10.0.0.0 0.255.255.255 area 0 !
如果這是一台帶有CIP卡的Cisco 7500路由器，而不是帶有xCPA埠介面卡的7200路由器，則應該在虛擬/2介面下配置tg語句。請注意ip ospf network point-to-multipoint命令，OSPF正常運行需要該命令。通道介面被視為多點介面，與幀中繼非常相似。如果您不希望在整個網路中運行OSPF，則只能在通道介面本身運行它，並使用其他路由協定之間的重分發。例如：
! router eigrp 1 redistribute ospf 1 passive-interface Channel2/0 network 10.0.0.0 no eigrp log-neighbor-changes ! router ospf 1 log-adjacency-changes redistribute eigrp 1 network 10.64.3.33 0.0.0.0 area 0 !
顯示在路由器上
diplodocus# show extended channel 2/0 status
Path: 0100 -- ESTABLISHED
Command Selective System Device CU
Dev Connects Retries Cancels Reset Reset Errors Busy
24 30 21 1 0 0 0 0
25 29 0 1 0 0 0 0
Blocks Bytes Dropped Blk Memd
Dev-Lnk Read Write Read Write Read Write wait Con
24-00 29 6 3484 789 0 0 0 Y
25-00 9 29 801 3920 0 0 0 Y
Path 0100
Total: 38 35 4285 4709 0 0 0
Last statistics 0 seconds old, next in 10 seconds
diplodocus# show extended channel 2/0 cmpc
Path Dv TGName Dir Bfrs Status
CMPC 0100 24 DIPTG READ 16 Active+
CMPC 0100 25 DIPTG WRITE 16 Active+
diplodocus# show ip ospf i
Channel2/0 is up, line protocol is up
Internet Address 10.64.3.33/28, Area 0
Process ID 1, Router ID 200.100.100.9, Network Type POINT_TO_MULTIPOINT,
Cost: 4
Transmit Delay is 1 sec, State POINT_TO_MULTIPOINT,
Timer intervals configured, Hello 30, Dead 120, Wait 120, Retransmit 5
Hello due in 00:00:10
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 1, Adjacent neighbor count is 1
Adjacent with neighbor 10.64.3.17
Suppress hello for 0 neighbor(s)
diplodocus# show ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface
10.64.3.17 1 FULL/ - 00:01:35
Neighbor is up for 00:04:01 10.64.3.34 Channel2/0
diplodocus# show ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
* - candidate default, U - per-user static route, o - ODR
P - periodic downloaded static route
Gateway of last resort is 10.64.3.1 to network 0.0.0.0
1.0.0.0/27 is subnetted, 1 subnets
C 1.1.1.0 is directly connected, Loopback1
200.100.100.0/29 is subnetted, 1 subnets
C 200.100.100.8 is directly connected, Loopback0
10.0.0.0/8 is variably subnetted, 9 subnets, 3 masks
D 10.0.0.0/8 is a summary, 00:06:40, Null0
C 10.64.3.0/28 is directly connected, Ethernet6/0
O E2 10.64.3.17/32 [110/1] via 10.64.3.34, 00:03:57, Channel2/0
O 10.64.3.16/28 [110/5] via 10.64.3.34, 00:03:57, Channel2/0
C 10.64.3.32/28 is directly connected, Channel2/0
S 10.64.3.34/32 [1/0] via 10.64.3.34, Channel2/0
S 10.64.3.37/32 [1/0] via 10.64.3.37, Channel2/0
C 10.64.3.48/28 is directly connected, Serial1/3.1
C 10.64.3.128/28 is directly connected, Serial1/3.2
S* 0.0.0.0/0 [1/0] via 10.64.3.1
在大型機上顯示
VTAM顯示在系統控制檯上
D NET,TRL IST097I DISPLAY ACCEPTED ST350I DISPLAY TYPE = TRL 042 IST1314I TRLE = DIPTG STATUS = ACTIV CONTROL = MPC IST1454I 1 TRLE(S) DISPLAYED IST314I END D NET,TRL,TRLE=DIPTG IST097I DISPLAY ACCEPTED IST075I NAME = DIPTG, TYPE = TRLE 045 IST486I STATUS= ACTIV, DESIRED STATE= ACTIV IST087I TYPE = LEASED , CONTROL = MPC , HPDT = YES IST1715I MPCLEVEL = HPDT MPCUSAGE = SHARE IST1577I HEADER SIZE = 4092 DATA SIZE = 60 STORAGE = ***NA*** IST1221I WRITE DEV = 0E25 STATUS = ACTIVE STATE = ONLINE IST1577I HEADER SIZE = 4092 DATA SIZE = 60 STORAGE = DATASPACE IST1221I READ DEV = 0E24 STATUS = ACTIVE STATE = ONLINE IST314I END
路由資訊顯示在netstat命令的TSO下
netstat route顯示路由表。例如：
===> netstat route EZZ2350I MVS TCP/IP NETSTAT CS V2R7 TCPIP NAME: TCPIP 15:56:33 EZZ2755I Destination Gateway Flags Refcnt Interface EZZ2756I ----------- ------- ----- ------ --------- EZZ2757I 10.0.0.0 10.64.3.33 UG 000000 LDIPTG EZZ2757I 10.64.3.32 0.0.0.0 U 000000 LDIPTG EZZ2757I 10.64.3.33 0.0.0.0 UH 000000 LDIPTG
netstat設備顯示所有連線的裝置或鏈路的狀態等。例如：
===> netstat device EZZ2350I MVS TCP/IP NETSTAT CS V2R7 TCPIP NAME: TCPIP 15:58:04 EZZ2760I DevName: LOOPBACK DevType: LOOPBACK DevNum: 0000 EZZ2761I LnkName: LOOPBACK LnkType: LOOPBACK Status: Ready EZZ2762I NetNum: 0 QueSize: 0 ByteIn: 0000004278 ByteOut: 0000004278 EZZ2768I BSD Routing Parameters: EZZ2769I MTU Size: 00000 Metric: 00 EZZ2770I DestAddr: 0.0.0.0 SubnetMask: 0.0.0.0 EZZ2810I Multicast Specific: EZZ2811I Multicast Capability: No EZZ2760I DevName: DIPTG DevType: MPC DevNum: 0000 EZZ2761I LnkName: LDIPTG LnkType: MPC Status: Ready EZZ2762I NetNum: 0 QueSize: 0 ByteIn: 0000001848 ByteOut: 0000001936 EZZ2768I BSD Routing Parameters: EZZ2769I MTU Size: 01470 Metric: 01 EZZ2770I DestAddr: 0.0.0.0 SubnetMask: 255.255.255.240 EZZ2810I Multicast Specific: EZZ2811I Multicast Capability: Yes EZZ2812I Group RefCnt EZZ2813I ----- ------ EZZ2814I 224.0.0.5 0000000001 EZZ2814I 224.0.0.1 0000000001 EZZ2760I DevName: VIPADEV DevType: VIPA DevNum: 0000 EZZ2761I LnkName: VIPALINK LnkType: VIPA Status: Ready EZZ2762I NetNum: 0 QueSize: 0 ByteIn: 0000000000 ByteOut: 0000000000 EZZ2768I BSD Routing Parameters: EZZ2769I MTU Size: 01470 Metric: 01 EZZ2770I DestAddr: 0.0.0.0 SubnetMask: 255.255.255.240 EZZ2810I Multicast Specific: EZZ2811I Multicast Capability: No
netstat還有許多可用選項。您可以發出netstat ?命令顯示全部內容。
意見