H3C core switch port routing involves configuring VLAN interfaces, assigning IP addresses, and setting up static or dynamic routes to enable inter-VLAN and external network communication.

Configuring VLAN Interfaces

To enable routing on an H3C core switch, you first need to create VLANs and assign IP addresses to their interfaces:

1. Enter system view:

system-view

1. Create VLANs:

vlan 10vlan 20

1. Assign IP addresses to VLAN interfaces:

interface Vlan-interface 10ip address 192.168.10.1 255.255.255.0interface Vlan-interface 20ip address 192.168.20.1 255.255.255.0

These VLAN interfaces act as Layer 3 gateways for devices in each VLAN, allowing inter-VLAN routing .

Configuring Physical Ports

Ports connecting to end devices or other switches must be assigned to the correct VLAN:

1. Enter interface view:

interface GigabitEthernet 1/0/1

1. Set port mode:

port link-type accessport default vlan 10

1. Enable the port:

undo shutdown

For trunk links between switches, use:

port link-type trunkport trunk permit vlan 10 20

This ensures VLAN traffic is properly carried across the network .

Setting Up Routing

Static Routing

To allow the core switch to communicate with external networks or an egress router:

1. Configure a default route:

ip route-static 0.0.0.0 0.0.0.0 192.168.100.1

Here, 192.168.100.1 is the next-hop IP of the egress router . 2. Add specific static routes if needed:

ip route-static 192.168.30.0 255.255.255.0 192.168.20.2

Dynamic Routing

H3C switches support protocols like RIP, OSPF, and BGP:

1. Enable a routing protocol:

ripnetwork 192.168.0.0

1. Configure route redistribution or metrics as required for inter-protocol communication .

Verifying Configuration

• Check VLAN interface status:

display interface Vlan-interface 10

• View routing table:

display ip routing-table

• Check port status:

display interface brief

These commands help ensure that VLANs, ports, and routes are correctly configured and operational .

Summary

H3C core switch port routing requires:

• Creating VLANs and assigning IP addresses to VLAN interfaces.
• Configuring physical ports as access or trunk ports.
• Setting up static or dynamic routes for inter-VLAN and external network communication.
• Verifying configuration using display commands. This setup allows the core switch to efficiently route traffic between VLANs and connect to upstream routers, forming the backbone of a campus or enterprise network .