Brocade Mobility RFS Controller System Reference Guide (Supporting software release 5.5.0.0 and later) - Manual (Page 849)

Brocade Mobility RFS Controller System Reference Guide 837
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The L2TPv3 screen displays the following:
VRRP
Controller Statistics
The VRRP statistics screen displays Virtual Router Redundancy Protocol (VRRP) configuration
statistics supporting router redundancy in a wireless network requiring high availability.
To review a selected controller or service platform’s VRRP statistics:
1. Select the Statistics menu from the Web UI.
Tunnel Name Displays the name of each listed L2TPv3 tunnel assigned upon creation. Each listed tunnel name can be
selected as a link to display session data specific to that tunnel. The Sessions screen displays cookie
size information as well as psuedowire information specific to the selected tunnel. Data is also available
to define whether the tunnel is a trunk session and whether tagged VLANs are used. The number of
transmitted, received and dropped packets also display to provide a throughput assessment of the
tunnel connection. Each listed session name can also be selected as a link to display VLAN information
specific to that session. The VLAN Details screen lists those VLANs used an interface in L2TP tunnel
establishment.
Local Address Lists the IP address assigned as the local tunnel end point address, not the tunnel interface’s IP
address. This IP is used as the tunnel source IP address. If a local address is not specified, the source IP
address is chosen automatically based on the tunnel peer IP address.
Peer Address Lists the IP address of the L2TP tunnel peer establishing the tunnel connection.
Tunnel State States whether the tunnel is Idle (not utilized by peers) or is currently active.
Peer Host Name Lists the assigned peer hostname used as matching criteria in the tunnel establishment process.
Peer Control
Connection ID Displays the numeric identifier for the tunnel session. This is the peer pseudowire ID for the session.
This source and destination IDs are exchanged in session establishment messages with the L2TP peer.
Control Connection ID Displays the router ID(s) sent in tunnel establishment messages with a potential peer device.
Up Time Lists the amount of time the L2TP connection has remained established amongst peers sharing the
L2TPv3 tunnel connection. The Up Time is displayed in a Days: Hours: Minutes: Seconds: format. If D:0
H:0 M:0 S:0 is displayed, the tunnel connection is not currently established.
Encapsulation
Protocol Displays either IP or UDP as the peer encapsulation protocol. The default setting is IP. UDP uses a simple
transmission model without implicit handshakes. Tunneling is also called encapsulation. Tunneling
works by encapsulating a network protocol within packets carried by the second network.
Critical Resource Displays monitored critical resources. Critical resources are device IP addresses or interface
destinations interopreted as critical to the health of the network. Critical resources allow for the
continuous monitoring of these defined addresses. A critical resource, if not available, can result in the
network suffering performance degradation. A critical resource can be a gateway, AAA server, WAN
interface or any hardware or service on which the stability of the network depends.
VRRP Group Lists a VRRP group ID (if utilized). A VRRP group is only enabled when the establishment criteria is set to
vrrp-master. A VRRP master responds to ARP requests, forwards packets with a destination link MAC
layer address equal to the virtual router MAC layer address, rejects packets addressed to the IP
associated with the virtual router and accepts packets addressed to the IP associated with the virtual
router.
Establishment Criteria Displays the tunnel establishment criteria for this tunnel. Tunnel establishment involves exchanging 3
message types (SCCRQ, SCCRP and SCCN) with the peer. Tunnel IDs and capabilities are exchanged
during the tunnel establishment with the host.
Refresh Select the Refresh button to update the screen’s statistics counters to their latest value.