11-30-2018 04:33 AM
Hi guys,
hopefully someone can help or give a hint.
I have a core switch Network of 4 switches connected in a ring.
SW1 and SW2 are doing hsrp and take over layer 3 functionalilty
SW3 and SW4 are only layer 2
SW1 VLAN 5 10.1.1.2/24 - SW1 VLAN 6 10.1.2.2/24
SW2 VLAN 5 10.1.1.3/24 - SW2 VLAN 6 10.1.2.3/24
SW3 VLAN 5 10.1.1.4/24
SW4 VLAN 6 10.1.2.4/24
VLAN 5 standby IP 10.1.1.1 - VLAN 6 standby IP 10.1.2.1
So SW1 and SW3 belong to VLAN 5 Management
and SW2 and SW4 bolong to VLAN 6 Management
issue:
SW3 can ping within it's subnet but not to SW4 with 10.1.2.4 in VLAN 6
SW4 can ping within it's subnet but not to SW3 with 10.1.1.4 in VLAN 5
then we have an Access switch (sw5 VLAN 5 10.1.1.5) with only layer 2 which is connected to SW1 and SW2 and this
sw5 can ping within it's subnet and to VLAN 6 SW2 10.1.2.3 but not VLAN 6 SW4 10.1.2.4
I guess there's a Routing issue but I have no idea at the Moment.
Output sw5
sw5# traceroute 10.1.2.3
Type escape sequence to abort.
Tracing the route to 10.1.2.3
VRF info: (vrf in name/id, vrf out name/id)
1 10.1.1.2 3 msec 0 msec 4 msec
2 10.1.1.3 3 msec * 0 msec
sw5# traceroute 10.1.2.4
Type escape sequence to abort.
Tracing the route to 10.1.2.4
VRF info: (vrf in name/id, vrf out name/id)
1 10.1.1.2 3 msec 14 msec 4 msec
2 * * *
3 * * *
Output SW3:
SW3#ping 10.1.2.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.2.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
sw3#traceroute 10.1.2.2
Type escape sequence to abort.
Tracing the route to 10.1.2.2
VRF info: (vrf in name/id, vrf out name/id)
1 * * *
made you short paint drawing for an overview.
any advise?
Solved! Go to Solution.
12-03-2018 05:17 PM
Edge switches don't know about each other so try one of these options.
Option 1
Sw3
ip routing
ip route 10.1.2.0 255.255.255.0 10.1.2.1
Sw4
ip routing
ip route 10.1.1.0 255.255.255.0 10.1.1.1
option 2
on both switches
no ip routing
ip default-gateway 10.1.1.1 (SW3)
ip default-gateway 10.1.2.1 (SW4)
12-03-2018 05:17 PM
Edge switches don't know about each other so try one of these options.
Option 1
Sw3
ip routing
ip route 10.1.2.0 255.255.255.0 10.1.2.1
Sw4
ip routing
ip route 10.1.1.0 255.255.255.0 10.1.1.1
option 2
on both switches
no ip routing
ip default-gateway 10.1.1.1 (SW3)
ip default-gateway 10.1.2.1 (SW4)
12-04-2018 02:22 AM
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