Shrimp Co.'s growing workforce requires streamlined network operations. Optimize STP for efficient redundancy, implement route summarization for scalability, and deploy DHCP for simplified device management.

Tip: Individual topology files are available in the diagrams folder on my Github

Verify port-channels, trunk links, and VLAN databases are configured from previous labs. Ensure VLANs 10, 20, and 99 have L2 reachability across the switching fabric.

Configure mstp on all switches:

• Define MST region shrimp-co with instance 1 mapping VLANs 10 and 20
• Set bridge priorities:
  • dsw1: priority 4096 (Root)
  • dsw2: priority 8192

spanning-tree mode mstp
spanning-tree mst configuration
 name shrimp-co
 revision 1
 instance 1 vlan 10,20
exit

spanning-tree mst 1 priority 4096  # On dsw1
spanning-tree mst 1 priority 8192  # On dsw2

Verify root bridge selection and port states using show spanning-tree mst.

Summarize access subnet advertisements from distribution switches. Use summary addresses on:

• sea-mdf-r1 and sea-mdf-r2 to summarize 10.1.0.0/16

router ospf 1
 area 0.0.0.0 range 10.1.0.0 255.255.0.0

This reduces LSA size and keeps the OSPF database lean as the network grows.

Deploy a DHCP server on sea-mdf-dsw1 for VLAN 99:

ip dhcp excluded-address 10.1.99.1 10.1.99.10
ip dhcp pool VLAN99
 network 10.1.99.0 255.255.255.0
 default-router 10.1.99.1
 dns-server 8.8.8.8
 lease 0 4 0

Bind DHCP to the SVI and ensure it responds to client requests from the access layer.

Note: This DHCP configuration is for testing purposes. In production, DHCP is often centralized.

Ensure each host on VLAN 99 obtains an IP via DHCP. Validate with show ip dhcp binding on the DSW.

show spanning-tree mst
show spanning-tree mst configuration
show ip dhcp binding

show ip ospf database summary
show ip route ospf

ip a
ping 10.1.99.1