3Com Dual Layer Configuration

Summary

Dual Layer Networking prepared to ensure LAN’s traffic flow among themselves without reaching Antikor v2. If any client which in a LAN wants to reach an external address, it shall get service from Antikor v2 otherwise it wants to reach an internal but different LAN, it will suffice to get service from backbone switch.

Network Topology

Configuration

The configurations these are required for the backbone switch shown below:

Spine Switch

#
sysname Spine
#
ip route
#
spanning-tree mode pvst
#
Vlan1
 no ip address
 shutdown
#
interface Vlan-interface100
 description Engineer
 ip address 10.33.100.1 255.255.255.0
#
interface Vlan-interface101
 description Architect
 ip address 10.33.101.1 255.255.255.0
#
interface Vlan-interface102
 description Administrative
 ip address 10.33.102.1 255.255.255.0
#
interface Ethernet1/0/1
 description Engineer_Architect
 port link-type hybrid
 port hybrid vlan 100 to 102 tagged
 port hybrid vlan 1 untagged
#
interface GigabitEthernet1/0/1
 description Antikor
 port link-type hybrid
 port hybrid vlan 100 to 102 tagged
 port hybrid vlan 1 untagged
#
interface GigabitEthernet1/0/2
#
ip classless
#
ip flow-export version 9
#
interface NULL0
#
user-interface aux 0 7
 authentication-mode scheme
user-interface vty 0 4
 authentication-mode scheme
 protocol inbound ssh
#
return

Faculty of Engineering and Architecture Switch:

Note: Depending on demand, more endpoints can be carried as many times as desired.

#
sysname Engineer_Architect
#
ip route
#
spanning-tree mode pvst
#
Vlan1
 no ip address
 shutdown
#
interface Vlan-interface100
 description Engineer
 ip address 10.33.100.2 255.255.255.0
#
interface Vlan-interface101
 description Architect
 ip address 10.33.101.2 255.255.255.0
#
interface Vlan-interface102
 description Administrative
 ip address 10.33.102.2 255.255.255.0
#
interface Ethernet1/0/1
port link-type hybrid 
port hybrid vlan 100 to 102 tagged
port hybrid vlan 1 untagged
#
interface Ethernet1/0/2
 port access vlan 100
#
interface Ethernet1/0/3
 port access vlan 101
#
interface Ethernet1/0/4
 port access vlan 102
#
ip classless
#
ip flow-export version 9
#
interface NULL0
#
user-interface aux 0 7
 authentication-mode scheme
user-interface vty 0 4
 authentication-mode scheme
 protocol inbound ssh
#
return

Testing

From pc2 to pc0 tracert image;

When we run traceroute from PC 2 to PC 0, we saw that the traffic did not go as far as Antikor v2 and turn around to right destination Network from Backbone Switch.
Please follow Antikor v2 Dual Layer Configurations Manual for required settings on the Antikor v2 side.

Troubleshooting

Runing Command	Error Message	Solution Suggestion
`ping 10.2.1.2`	— Ping statistics for 10.0.0.1 — 5 packets transmitted, 0 packets received, 100.0% packet loss	Check the status of the ports.
		Review VLAN settings.

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