From: Peter van Oene (pvo@usermail.com)
Date: Sun Jan 05 2003 - 13:41:02 GMT-3
At 12:53 PM 1/4/2003 -0800, Solomon Ghebremariam wrote:
>Kym
> I was trying to avoid using redistribute connected :) I thought
> like any protocol such as EIGRP , IS IS would transfer that link from is
> database to OSPF's up on redistribution??
Routers only advertise routes they actually use. Hence, only ISIS learned
prefixes that exist in the routing table would be candidates for type 5/7
advertisement in OSPF. Hence, the process is ISIS LSDB ---> Local RIB --->
OSPF LSDB, not one DB to the other.
>At 06:33 AM 1/4/2003 +0000, kym blair wrote:
>>Solomon,
>>
>>I didn't read your question carefully enough ... you were already
>>redistributing ISIS into OSPF, but you wanted to know how to get the
>>R8-R5 (directly connected) link into OSPF.
>>
>>You need to redistribute connected on R8 to get the R8-R5 link into OSPF.
>>(Alternatively, you could add ISIS to R7, but I don't think that's what
>>you are looking for.)
>>
>>Separate issue, I thought only an ISIS Level-2 router could redistribute,
>>but your config is redistributing ISIS routes to OSPF when R8 is Level-1,
>>so I was wrong about that.
>>
>>Kym
>>
>>
>>
>>
>>
>>
>>
>>
>>>From: Solomon Ghebremariam <sghebrem@cisco.com>
>>>Reply-To: Solomon Ghebremariam <sghebrem@cisco.com>
>>>To: "kym blair" <kymblair@hotmail.com>
>>>CC: ccielab@groupstudy.com
>>>Subject: Re: IS IS Connected network not being redistributed
>>>Date: Fri, 03 Jan 2003 21:19:24 -0800
>>>
>>>Kym
>>>
>>>no luck, I changed R8 to Level-1-2 and I can see the two loopback
>>>interfaces in R7 as O E2 but not the segment between R8 and R5 i.e the
>>>147.4.85.0/24 network.
>>>
>>>
>>>At 03:57 AM 1/4/2003 +0000, kym blair wrote:
>>>>R8 needs to be ISIS Level-2 to redistribute into OSPF. If R5 is
>>>>Level-1, then R8 will need to be Level-1-2 to exchange routes with R5
>>>>AND do redistribution into OSPF.
>>>>
>>>>HTH, Kym
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>>From: Solomon Ghebremariam <sghebrem@cisco.com>
>>>>>Reply-To: Solomon Ghebremariam <sghebrem@cisco.com>
>>>>>To: ccielab@groupstudy.com
>>>>>Subject: IS IS Connected network not being redistributed
>>>>>Date: Fri, 03 Jan 2003 18:59:23 -0800
>>>>>
>>>>> Hi All,
>>>>> I have :
>>>>>
>>>>>R7 --- R8 ---- R5
>>>>>
>>>>>IS IS between R8 and R5. OSPF between R7 and R8.
>>>>>
>>>>>I created a couple of loopback interfaces in R5 and put them in IS IS and
>>>>>I see all those routes in R8 fine. I redistribute IS IS to OSPF and vice
>>>>>versa. I can see all the routes (in R7) except for the segment connecting
>>>>>R8 and R5. I have a permit statement for that segment when I did redis.
>>>>>All networks are /24 except the link between R7 and R8 is /25 . How do I
>>>>>get the segment between R8 and R5 show up in R7 as External OSPF route
>>>>>besides doing redistribute connected.
>>>>>
>>>>>R8 config is:
>>>>>
>>>>>interface Ethernet1/0
>>>>> ip address 147.4.85.8 255.255.255.0
>>>>> ip router isis
>>>>> half-duplex
>>>>> isis circuit-type level-1
>>>>> isis priority 15
>>>>>!
>>>>>
>>>>>router isis
>>>>> redistribute ospf 8 metric 60 route-map ospf2isis metric-type external
>>>>>level-1
>>>>> net 49.8888.8888.8888.8888.00
>>>>> is-type level-1
>>>>>
>>>>>
>>>>> router ospf 8
>>>>> log-adjacency-changes
>>>>> area 0 authentication message-digest
>>>>> redistribute isis level-1 subnets route-map isis2ospf
>>>>> network 147.4.87.0 0.0.0.127 area 0
>>>>> neighbor 147.4.87.7 priority 1
>>>>>
>>>>>
>>>>>access-list 88 permit 170.3.12.0 0.0.1.255
>>>>>access-list 88 permit 147.4.85.0 0.0.0.255
>>>>>
>>>>>route-map isis2ospf permit 10
>>>>> match ip address 88
>>>>>!
>>>>>route-map ospf2isis deny 10
>>>>> match ip address 88
>>>>>!
>>>>>route-map ospf2isis permit 20
>>>>>
>>>>>R5's config is:
>>>>>
>>>>> interface Loopback12
>>>>> ip address 170.3.12.1 255.255.255.0
>>>>> ip router isis
>>>>>!
>>>>>interface Loopback13
>>>>> ip address 170.3.13.1 255.255.255.0
>>>>> ip router isis
>>>>>!
>>>>>
>>>>>interface FastEthernet0/1
>>>>> ip address 147.4.85.5 255.255.255.0
>>>>> ip router isis
>>>>> duplex auto
>>>>> speed auto
>>>>> isis circuit-type level-1
>>>>> isis priority 10
>>>>>!
>>>>>
>>>>>router isis
>>>>> net 49.8888.5555.5555.5555.00
>>>>> is-type level-1
>>>>>!
>>>>>
>>>>>Also here is my debug out put:
>>>>>
>>>>>2w2d: ISIS-Spf: (accepted)
>>>>>2w2d: ISIS-Spf: Add 5555.5555.5555.00-00 to TENT, metric 10
>>>>>2w2d: ISIS-Spf: Next hop 5555.5555.5555 (Ethernet1/0)
>>>>>2w2d: ISIS-Spf: Move 5555.5555.5555.00-00 to PATHS, metric 10
>>>>>2w2d: ISIS-Spf: Add 147.4.85.0/255.255.255.0 to IP RIB, metric 20
>>>>>2w2d: ISIS-Spf: Next hop 5555.5555.5555/147.4.85.5 (Ethernet1/0)
>>>>>(rejected)
>>>>>R8#
>>>>>2w2d: ISIS-Spf: Add 170.3.12.0/255.255.255.0 to IP RIB, metric 20
>>>>>2w2d: ISIS-Spf: Next hop 5555.5555.5555/147.4.85.5 (Ethernet1/0)
>>>>>(accepted)
>>>>>2w2d: ISIS-Spf: Add 170.3.13.0/255.255.255.0 to IP RIB, metric 20
>>>>>2w2d: ISIS-Spf: Next hop 5555.5555.5555/147.4.85.5(Ethernet1/0)
>>>>>(accepted)
>>>>>2w2d: ISIS-Spf: Aging L1 LSP 1 (5555.5555.5555.00-00), version 149
>>>>>2w2d: ISIS-Spf: Aging L1 LSP 3 (8888.8888.8888.00-00), version 127
>>>>>2w2d: ISIS-Spf: Aging L1 LSP 5 (8888.8888.8888.01-00), version 17
>>>>>
>>>>>appreciate ur help
>>>>>solomon
>>>>>.
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