When deploying Metro Ethernet service and Colocated services, best practice it to put the ports in protected mode or uni. This is to prevent customers from causing interference to each other with layer2 protocols. It also allows the user of service provider traffic filtering. The downside is without additional configuration, customer traffic to another customer is blackholed when they exist in the same subnet. Continue reading “Allowing UNI or protected ports on Cisco switch to reach each other using IP”
Source Based Routing for Multiple Networks
After not having time to write an article for a while, here is the article I promised in the last post. We will take our basic network from our other article on source based routing, and expand it. This solution involves a dual-homed network with redundant gateways. Continue reading “Source Based Routing for Multiple Networks”
Reserved IP Addresses
RFC5735 Outlines the different reserved ipv4 addresses. In addition to the RFC1918 space (10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16) There are Other Ranges. Continue reading “Reserved IP Addresses”