配置 OMPROUTE 以在大型机上运行
目录
简介
本文档概述了在大型机上运行OMPROUTE过程以与TCP/IP网络的其余部分交换路由更新的主机和路由器配置示例。OMPROUTE通常与虚拟IP地址(VIPA)结合使用，它允许在客户端中配置的大型机的IP地址独立于任何一个通道接口。这为通道提供冗余。最初，IBM的大型机TCP/IP实施仅支持路由信息协议(RIP)作为路由协议，使用OROUTED过程。较新的OMPROUTE支持RIP V1或V2和开放最短路径优先(OSPF)。IBM建议使用OMPROUTE而不是OROUTED，IBM将最终取消对OROUTED的支持。
先决条件
要求
本文档没有任何特定的要求。
使用的组件
用于此配置的Cisco IOS®软件版本是12.1(3a)T2，带xCPA微码27-9，这是测试时的最新版本。但是，如果您使用CLAW，这应适用于任何版本的Cisco IOS软件。使用CMPC+至少需要Cisco IOS软件版本12.1T。
路由器是带xCPA端口适配器的Cisco 7206。或者，带CIP卡的Cisco 7500路由器可与配置中的细微更改一起使用，如本文档后面所述。
本文档中的信息都是基于特定实验室环境中的设备编写的。本文档中使用的所有设备最初均采用原始（默认）配置。如果您使用的是真实网络，请确保您已经了解所有命令的潜在影响。
规则
有关文件规则的更多信息请参见“ Cisco技术提示规则”。
配置
大型机配置 - OMPROUTE 文件
在大型机上配置OMPROUTE与配置OROUTED非常相似。OMPROUTE还至少使用两个配置文件。您必须在OMVS地址空间中指向这些配置文件的位置，其中包含以下两个环境变量：
-
export resolver_conf=/etc/resolv.conf
-
export omproute_file=/etc/omproute.conf
以下是resolver_conf的内容示例：
TCPJobName TCPIP DomainOrigin cisco.com domain cisco.com Datasetprefix TCPIP HostName P390 Messagecase mixed
omproute_file取决于是使用RIP还是OSPF。以下是RIP的示例配置：
; 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 ;
对于OSPF，有更多的配置选项，包括使大型机充当末节区域的功能。这可以显着减少当许多逻辑分区(LPAR)通过同一信道连接时放在信道上的负载路由更新。示例如下：
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
大型机配置 — TCP/IP堆栈
TCP/IP配置文件数据集不需要OMPROUTE的任何特殊配置，除了您必须注释掉所有静态和默认路由配置以及BSDROUTINGPARMS部分（仅由OROUTED使用）之外。 此提取仅显示必须注释的内容以及OMPROUTE配置文件引用的参数：
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.
大型机配置 — VTAM定义和启动TCP/IP
路由更新可通过CLAW或CMPC+连接交换。如果您使用CLAW，则不需要在大型机上进行其他配置。本示例使用CMPC，它需要VTAM传输资源列表(TRL)条目。这是VTAM成员：
DIPTGTRL VBUILD TYPE=TRL * * DIPTG TRLE LNCTL=MPC,MAXBFRU=16,READ=(E24),WRITE=(E25) *
必须先激活TRL，然后才能启动TCPIP启动任务。例如：
V NET,ACT,ID=DIPTRL1,UPDATE=ALL IST097I VARY ACCEPTED ISTTRL ACTIVE
然后，使用S TCPIP MVS控制台命令激活TCP/IP启动的任务。一旦TCP/IP启动任务运行，OMPROUTE过程即可启动，使用作业控制语言(JCL)作为启动任务或从OMVS地址空间中启动。要在OMVS中启动，请发出以下命令：
cd /usr/lpp/tcpip/sbin omproute &
要检查OMPROUTE是否正在运行，请发出以下控制台命令，其中p390是启动OMPROUTE恶魔的用户ID:
d omvs,u=p390
路由器配置
CLAW和CMPC必须经过专门配置，才能通过信道发送广播，并使用broadcast关键字。例如，对于CLAW:
claw 0100 20 10.101.1.10 P390D C7000D TCPIP TCPIP broadcast
在本例中，CMPC+正在使用，因此这些是路由器配置的相关部分：
! 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 !
如果这是带CIP卡的Cisco 7500路由器，而不是带xCPA端口适配器的7200路由器，则tg语句应已在虚拟/2接口下配置。注意ip ospf network point-to-multipoint命令，该命令是OSPF正常运行所必需的。信道接口被视为多点接口，与帧中继非常相似。如果您不想在整个网络中运行OSPF，则只能在通道接口本身上运行OSPF并在其他路由协议之间使用重分发。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 !
显示在路由器上
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
大型机上的显示
系统控制台上的 Vtam 显示
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
路由信息显示在netstat命令的TSO下
netstat route显示路由表。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设备显示所有已连接设备或链路的状态等。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还有许多其他选项。您可以发出netstat ?命令显示所有。
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