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gajanangavli
Beginner

EIGRP Flap on DS3 link , no drop on WAN

Hi,

I have configured new DS3 link as below.Also GRE tunnel build on it.EIGRP running between tunnel interfaces.

EIGRP is flapping every minute , i dont found any packet drop between 2 routers WAN interfaces, but ping stcuks for some time.

During this time EIGRP flaps.ISP dont found any issue in network.

int s4/0

ip add x.x.x.x

encapsulation ppp

dsu bandwidth 44210

scramble

crc 32

serial restart-delay 0

interface Tunnel155

  bandwidth 25000

ip address A.B.C.D

no ip redirects

no ip proxy-arp

ip tcp adjust-mss 1432

load-interval 30

delay 100

qos pre-classify

keepalive 10 3

tunnel source Serial4/0

tunnel destination YY.Y.Y.

1 ACCEPTED SOLUTION

Accepted Solutions

Did you check the IP MTU on both sides of the tunnel? You might want to reduce the MTU size according to how much your physical link supports.

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5 REPLIES 5
Raju Sekharan
Cisco Employee