I was trying to ping from R5 to Cat3, which is configured with ether channel
and int fa0/5 of cat 3 is in correct Vlan 1100, which is the correct Vlan
but I am not able to ping from R5 and get encapsulation failed error . When
I did debug I get this out put but not sure what is the problem ?. All
interface on CAT3 and R5 shows up. I know its layer 2 issue and Mac address
is not getting resolved but not sure why ?
Here is output………………
R5#ping 192.168.100.13
Type escape sequence to abort.
.
*Nov 20 03:28:57.606: IP: s=192.168.100.5 (local), d=192.168.100.13
(FastEthernet0/1), len 100, sending
*Nov 20 03:28:57.606: IP: s=192.168.100.5 (local), d=192.168.100.13
(FastEthernet0/1), len 100, encapsulation failed.
*Nov 20 03:28:59.606: IP: s=192.168.100.5 (local), d=192.168.100.13
(FastEthernet0/1), len 100, sending
*Nov 20 03:28:59.606: IP: s=192.168.100.5 (local), d=192.168.100.13
(FastEthernet0/1), len 100, encapsulation failed
R5#sh arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 192.168.100.5 - 0012.8032.0af9 ARPA FastEthernet0/1
Internet 192.168.100.13 0 Incomplete ARPA
R5#
============================================================
Cat3(config-if)#do sh ether sum
Flags: D - down P - bundled in port-channel
I - stand-alone s - suspended
H - Hot-standby (LACP only)
R - Layer3 S - Layer2
U - in use f - failed to allocate aggregator
M - not in use, minimum links not met
u - unsuitable for bundling
w - waiting to be aggregated
d - default port
Number of channel-groups in use: 3
Number of aggregators: 3
Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
1 Po1(SU) LACP Fa0/19(P) Fa0/20(P)
2 Po2(SU) LACP Fa0/21(P) Fa0/22(P)
3 Po3(SU) LACP Fa0/23(P) Fa0/24(P)
Cat3#sh run int fa0/5
Building configuration...
Current configuration : 81 bytes
!
interface FastEthernet0/5
switchport mode access
switchport nonegotiate
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