From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Thu Jun 23 2005 - 16:17:01 GMT-3
Yes it should because they have two separate next-hop values. Did you
try what I said with the "maximum-paths" command?
Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com
Internetwork Expert, Inc.
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> -----Original Message-----
> From: Sheikh Rahman [mailto:Sheikh.Rahman@uk.didata.com]
> Sent: Thursday, June 23, 2005 2:16 PM
> To: Brian McGahan
> Subject: RE: eigrp equal cost load balance
>
> Hi Brian,
>
> Will Eigrp load-balance between 2 neighbors through one interface. Let
> me expalin youmy network topology little more in detail.
>
> -- R2 OSPF
> Sw Eigrp ---- ----------- R1
> --- R3
>
>
> Sw, R2 and R3 e0 interface running eigrp and R2,R3's serial interface
> and R1 running OSPF
>
> OSPF and eigrp are being redistributed in R2 and R3. R1 (ospf) is able
> to load balance to prefixes learned from Eigrp. But Sw is not able to
> load balance prefixes learned from OSPF. When redistributed ospf route
> to eigrp metric was same on both router. R2 and R3 is using sw's vlan2
> interface.
>
> Not sure eigrp load balance between 2 neighbor through same interface
in
> this case sw will use vlan2 interface to communicate with the R2 and
R3
> router.
>
>
> Your help will be highly appreciated.
>
> Thanks
>
> Sheikh
>
> -----Original Message-----
> From: Brian McGahan [mailto:bmcgahan@internetworkexpert.com]
> Sent: 23 June 2005 17:34
> To: Sheikh Rahman
> Cc: ccielab@groupstudy.com
> Subject: RE: eigrp equal cost load balance
>
> Sheikh,
>
> Issue the "maximum-paths 2" command under the EIGRP process of
> the switch and then "clear ip eigrp neighbor".
>
>
> HTH,
>
> Brian McGahan, CCIE #8593
> bmcgahan@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com
> Toll Free: 877-224-8987 x 705
> Outside US: 775-826-4344 x 705
> 24/7 Support: http://forum.internetworkexpert.com
> Live Chat: http://www.internetworkexpert.com/chat/
>
>
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of
> > Sheikh Rahman
> > Sent: Wednesday, June 22, 2005 6:38 PM
> > To: Brian McGahan
> > Cc: ccielab@groupstudy.com
> > Subject: RE: eigrp equal cost load balance
> >
> > Hi Brian,
> >
> > Please find below requested info
> >
> > Thanks for your help
> >
> > Sw config
> >
> > Native_6k>sh ip eigrp ne
> > IP-EIGRP neighbors for process 8
> > H Address Interface Hold Uptime SRTT RTO
> Q
> > Seq
> > (sec) (ms)
> Cnt
> > Num
> > 2 10.10.10.1 Vl2 14 00:07:27 52
312
> > 0 127
> > 1 10.10.10.2 Vl2 14 04:25:57 4
200
> > 0 122
> >
> >
> > Native_6k>sh ip eigrp topology
> > IP-EIGRP Topology Table for AS(8)/ID(10.10.10.7)
> >
> > Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
> > r - reply Status, s - sia Status
> >
> > P 20.20.1.1/32, 1 successors, FD is 2170112, tag is 31
> > via 10.10.10.2 (2170112/2169856), Vlan2
> >
> > P 20.20.20.0/29, 1 successors, FD is 2170112
> > via 10.10.10.1 (2170112/2169856), Vlan2
> > via 10.10.10.2 (2170112/2169856), Vlan2
> >
> > Native_6k>sh ip route
> >
> > D 20.20.20.0/29 [90/2170112] via 10.10.10.2, 00:13:10, Vlan2
> > D EX 20.20.1.1/32 [170/2170112] via 10.10.10.2, 00:12:51, Vlan2
> >
> > Native_6k>sh ip eigrp topology 20.20.1.1 255.255.255.255 IP-EIGRP
> > topology entry for 20.20.1.1/32
> > State is Passive, Query origin flag is 1, 1 Successor(s), FD is
> > 2170112
> > Routing Descriptor Blocks:
> > 10.10.10.1 (Vlan2), from 10.10.10.1, Send flag is 0x0
> > Composite metric is (2170112/2169856), Route is External
> > Vector metric:
> > Minimum bandwidth is 1544 Kbit
> > Total delay is 20010 microseconds
> > Reliability is 255/255
> > Load is 1/255
> > Minimum MTU is 1500
> > Hop count is 1
> > External data:
> > Originating router is 10.10.10.2
> > AS number of route is 8
> > External protocol is OSPF, external metric is 65
> > Administrator tag is 31 (0x0000001F) Native_6k>
> >
> > Native_6k>sh ip eigrp topology 20.20.20.0 255.255.255.248 IP-EIGRP
> > topology entry for 20.20.20.0/29
> > State is Passive, Query origin flag is 1, 1 Successor(s), FD is
> > 2170112
> > Routing Descriptor Blocks:
> > 10.10.10.2 (Vlan2), from 10.10.10.2, Send flag is 0x0
> > Composite metric is (2170112/2169856), Route is Internal
> > Vector metric:
> > Minimum bandwidth is 1544 Kbit
> > Total delay is 20010 microseconds
> > Reliability is 255/255
> > Load is 1/255
> > Minimum MTU is 1500
> > Hop count is 1
> > 10.10.10.1 (Vlan2), from 10.10.10.1, Send flag is 0x0
> > Composite metric is (2170112/2169856), Route is External
> > Vector metric:
> > Minimum bandwidth is 1544 Kbit
> > Total delay is 20010 microseconds
> > Reliability is 255/255
> > Load is 1/255
> > Minimum MTU is 1500
> > Hop count is 1
> > External data:
> > Originating router is 10.10.10.1
> > AS number of route is 8
> > External protocol is OSPF, external metric is 0
> > Administrator tag is 31 (0x0000001F) Native_6k>
> >
> >
> >
> > -----Original Message-----
> > From: Brian McGahan [mailto:bmcgahan@internetworkexpert.com]
> > Sent: 23 June 2005 00:12
> > To: Sheikh Rahman; ccielab@groupstudy.com
> > Subject: RE: eigrp equal cost load balance
> >
> > Sheikh,
> >
> > Post the output of 'show ip eigrp neighbor', 'show ip eigrp
> > topology', 'show ip eigrp topology a.b.c.d w.x.y.z' where a.b.c.d is
> the
> > prefix and w.x.y.z is the mask, and 'show ip route'.
> >
> >
> >
> > Brian McGahan, CCIE #8593
> > bmcgahan@internetworkexpert.com
> >
> > Internetwork Expert, Inc.
> > http://www.InternetworkExpert.com
> > Toll Free: 877-224-8987 x 705
> > Outside US: 775-826-4344 x 705
> > 24/7 Support: http://forum.internetworkexpert.com
> > Live Chat: http://www.internetworkexpert.com/chat/
> >
> >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
Behalf
> > Of
> > > Sheikh Rahman
> > > Sent: Wednesday, June 22, 2005 2:43 PM
> > > To: ccielab@groupstudy.com
> > > Subject: eigrp equal cost load balance
> > >
> > > Hi Group,
> > >
> > > I am having issue with the equal path load balance through eigrp
> > > follwoing is my diagram
> > >
> > > Sw ---- R1
> > > ---- R2
> > >
> > > I have 2 router connectes to a switch vlan10. I have assign an ip
> add
> > to
> > > vlan 10 (1.1.1.10) R1 address .1 and r2 address .2 there is a link
> > > between r1 and r2 netw for that link is 20.20.20.0 What I am tring
> to
> > > achive is sw should load balance 20.20.20.0
> > network.
> > > But in the sh ip eigrp topology I just see this network learned
from
> > R2
> > > if I turn off r2 int then it learns from R1 but it's not load
> > balancing.
> > > Is there any issue with eigrp if it learns route from multiple
> > neighbor
> > > through one interface?
> > >
> > > Thanks is advance
> > >
> > > sheikh
> > >
> > >
> > > Sheikh Rahman
> > > Support Desk Engineer
> > > Dimension Data
> > > Dimension Data House
> > > Building 2 , Waterfront Business Park Fleet Road, Fleet Hampshire
> > > GU51 3QT
> > > +44 (0)12 5277 9330 Office
> > > +44 (0)12 5277 9010 Fax
> > > Dimension Data Home Page <http://www.didata.com>
> > >
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