04-25-2014 12:19 PM - edited 03-07-2019 07:13 PM
I'm currently having an issue with loss of connectivy between the above mentioned router and switch.
After a few hours the directly connected interfaces are unable to ping each other and as a side effect we lose our eigrp adjacency. Only a reload of the sup8e switching to it's failover brings the links back. I have tried the same setup replacing the 4510 with an 3750-e for testing which stays stable. So i need help with the 4510
Setup mpls---g0/0/1---4451- g0/0/3 ---- g1/1 ---- 4510-r-e
Router important parts
router bgp 65000
bgp log-neighbor-changes
network 10.149.0.0 mask 255.255.0.0
network 10.150.0.0 mask 255.255.0.0
network 10.151.0.0 mask 255.255.0.0
neighbor x.x.x.x remote-as xxxxx
router eigrp 100
network 10.150.11.0 0.0.0.255
redistribute bgp 65000 metric 10000 1 255 1 1500
passive-interface default
no passive-interface GigabitEthernet0/0/3
interface GigabitEthernet0/0/3
ip address 10.150.11.10 255.255.255.0
speed 1000
no negotiation auto
vrrp 1 ip 10.150.11.5
vrrp 1 priority 110
vrrp 1 track 1 decrement 15
ip route 10.149.0.0 255.255.0.0 Null0
ip route 10.150.0.0 255.255.0.0 Null0
ip route 10.151.0.0 255.255.0.0 Null0
Switch
router eigrp 100
network 10.150.11.0 0.0.0.255
redistribute connected
passive-interface default
no passive-interface Vlan11
interface GigabitEthernet1/1
switchport access vlan 11
switchport mode access
ip device tracking maximum 0
speed 1000
nmsp attachment suppress
spanning-tree portfast
as you can see above i have placed commands into g1/1 trying to disable ip device tracking in case this is the culprit. I havent had it running long enough for the links to go downto see with this addition.
interface Vlan11
description Wan Vlan
ip address 10.150.11.1 255.255.255.0
all is well for a few hours then all comunication stops between g0/0/3 and g1/1
I have even removed all eigrp and vrrp statements, shut and no shut the interface afterwords but still no ping once it happens. I have to reload a supervisor to get pings back.
the only difference between my 3750-e which works and this 4510r-e is this new ip device-tracking
anyone think it has to do with g0/0/3 having vrrp on it with a virtual mac address as well as the interface mac connected to g1/1 which has ip device tracking enabled ?
04-26-2014 03:24 PM
Update, so far since disabling the ip device tracking on the g1/1 port the connection has stayed stable. I'm not sure why device tracking would cause an issue or loss of connection. I have done some reading on device tracking and I hear of wierd issues such as win 7 machines receiving ip address already in use messages from dhcp received from the switch. If anyone has any experiance with device tracking I would love to here some responses. For now I am going to issue those commands across all ports since there is no global way of turning this off.
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