Netgear XCM8810 Chassis User Manual - Page 938

P (Continued) ping PMBR PoE policy files port mirroring POST protected VLAN proxy ARP PVST+ NETGEAR 8800 User Manual Packet Internet Groper. Ping is the ICMP echo message and its reply that tests network reachability of a device. Ping sends an echo packet to the specified host, waits for a response, and reports success or failure and statistics about its operation. PIM multicast border router. A PIMBR integrates PIM-DM and PIM-SM traffic. Power over Ethernet. The PoE standard (IEEE 802.3af) defines how power can be provided to network devices over existing Ethernet connections. You use policy files in XCM8800 to specify ACLs and policies. A policy file is a text file (with a .pol extension) that specifies a number of conditions to test and actions to take. For ACLs, this information is applied to incoming traffic at the hardware level. Policies are more general and can be applied to incoming routing information; they can be used to rewrite and modify routing advertisements. Port mirroring configures the switch to copy all traffic associated with one or more ports to a designated monitor port. A packet bound for or heading away from the mirrored port is forwarded onto the monitor port as well. The monitor port can be connected to a network analyzer or RMON probe for packet analysis. Port mirroring is a method of monitoring network traffic that a network administrator uses as a diagnostic tool or debugging feature; it can be managed locally or remotely. Power On Self Test. On NETGEAR switches, the POST runs upon powering-up the device. If the MGMT LED is yellow after the POST completes, contact your supplier for advice. In STP, protected VLANs are the other (other than the carrier VLAN) VLANs that are members of the STPD but do not define the scope of the STPD. Protected VLANs do not transmit or receive STP BPDUs, but they are affected by STP state changes and inherit the state of the carrier VLAN. Also known as non-carrier VLANs, they carry the data traffic. This is the technique in which one machine, usually a router, answers ARP requests intended for another machine. By masquerading its identity (as an endstation), the router accepts responsibility for routing packets to the real destination. Proxy ARP allows a site to use a single IP address with two physical networks. Subnetting is normally a better solution. Per VLAN Spanning Tree +. This implementation of STP has a 1:1 relationship with VLANs. The NETGEAR implementation of PVST+ allows you to interoperate with third-party devices running this version of STP. PVST is a earlier version of this protocol and is compatible with PVST+. 938 | Appendix E. Glossary