Thanks for the update fulvio good to know -- BR
Tony Sent from my iPad On 28 Jul 2012, at 11:03, Fulvio allegretti <[email protected]> wrote: > > FYI - this is the info I have received: > > This issue is due to a bug - CSCsy98281. > There is no information available externally about this bug as it is not yet > fixed. > > Bug Description - > > Symptom: > Connected network not present in EIGRP topology table. > > Conditions: > If a network is advertised in EIGRP first and then the corresponding IP > address is configured on the interface, this network is not introduced into > the EIGRP topology table. Due to this the network is not advertised to the > rest of the routing domain. > > Workaround: > Shutdown and unshut the interface. > > As a matter of fact, a particular sequence of configuration causes the issue. > > SEQUENCE 1 - > With the below sequence, issue is not observed. > (1) VLAN subnet is advertized using the EIGRP network command. > (2) Interface VLAN is created > (3) IP address is configured on it > (4) Interface is no shut. > > SEQUENCE 2 - > With the below sequence, issue is observed. > (1) VLAN subnet is advertized using the EIGRP network command. > (2) Interface VLAN is created > (3) Interface is no shut. > (4) IP address is configured on it > > This bug is a corner case issue. > Since the issue was resolved upon a reload of the switch, this indicates that > the configuration is read by IOS in the sequence which causes the issue not > to occur. > I believe that the issue will not be observed in the future. > The workaround is to shut/no shut the interface - which would mirror SEQUENCE > 1. > > > > > > From: [email protected] > To: [email protected] > Subject: Real life - Possible eigrp bug ? > Date: Tue, 24 Jul 2012 22:03:55 +0000 > > > > > Hi all, > > real life scenario here, hope you can help. Running eigrp and I should be > advertising some networks out but I don't, well the device dosen't. Below is > the relevant config. The problem is on vlan 692. > > I am not redistributing connected. You can see that for vlan 691 it's all > good, but for 692, I get 0 successors, FD is Inaccessible. Any ideas? Many > thanks. > > > Building configuration... > Current configuration : 252 bytes > ! > interface Vlan692 > ip address 172.31.90.30 255.255.255.224 > standby 1 ip 172.31.90.1 > standby 1 priority 255 > standby 1 preempt > end > MLSWITCH#sh ip route 172.31.90.0 > Routing entry for 172.31.90.0/27 > Known via "connected", distance 0, metric 0 (connected, via interface) > Redistributing via eigrp 1 > Routing Descriptor Blocks: > > MLSWITCU#sh ip eigrp topology all-links | beg 172.31.90.0 > P 172.31.90.0/27, 0 successors, FD is Inaccessible, serno 0 > via 192.168.219.105 (3072/2816), GigabitEthernet5/1 > via 172.31.157.130 (3072/2816), Vlan690 > > Building configuration... > Current configuration : 202 bytes > ! > interface Vlan691 > ip address 172.31.91.254 255.255.255.0 > no ip redirects > no ip proxy-arp > standby 51 ip 172.31.91.1 > standby 51 priority 254 > standby 51 preempt > end > > MLSWITCH#sh ip route 172.31.91.0 > Routing entry for 172.31.91.0/24 > Known via "connected", distance 0, metric 0 (connected, via interface) > Redistributing via eigrp 1 > Routing Descriptor Blocks: > * directly connected, via Vlan691 > Route metric is 0, traffic share count is 1 > MLSWITCH#sh ip eigrp topology all-links | beg 172.31.91.0 > P 172.31.91.0/24, 1 successors, FD is 2816, serno 210256 > via Connected, Vlan691 > via 172.31.157.130 (3072/2816), Vlan690 > > router eigrp 1 > network 172.31.89.0 0.0.0.255 > network 172.31.90.0 0.0.0.31 > network 172.31.90.64 0.0.0.63 > network 172.31.91.0 0.0.0.255 > network 172.31.157.128 0.0.0.7 > network 192.168.219.104 0.0.0.3 > network 192.168.219.108 0.0.0.3 > network 192.168.238.104 0.0.0.0 > passive-interface default > no passive-interface GigabitEthernet5/1 > no passive-interface TenGigabitEthernet5/4 > no passive-interface GigabitEthernet5/2 > no passive-interface Vlan690 > > > System image file is > "sup-bootdisk:s72033-adventerprisek9_wan-mz.122-33.SXI4.bin" > cisco WS-C6506-E (R7000) processor (revision 1.2) with 983008K/65536K bytes > of memory. > > Fulvio > > > > > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > > http://onlinestudylist.com/mailman/listinfo/ccie_rs _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com http://onlinestudylist.com/mailman/listinfo/ccie_rs
