The data MDT application enables you to solve the problem of IP routers flooding
unnecessary multicast information to PE routers that have no interested receivers
for a particular VPN multicast group. The multicast data MDT solution requires the
creation of a new dynamic IP tunnel by the PE router if the source exceeds a
configured rate threshold parameter.
The data MDT application supports a co-located tunnel interface. The base GRE
interface and its co-located data MDT interface must be both static or both dynamic.
The data MDT application creates a dynamic IP tunnel using the attributes in a
customized destination profile.
When creating the dynamic IP tunnel, the data MDT application assigns its name
using the following format:
mvpn-dynamic-
number
For the data MDT application, you should configure a customized destination profile.
For information about configuring multicast VPNs using GRE tunnels, see
Configuring
PIM for IPv4 Multicast
in
JUNOSe Multicast Routing Configuration Guide
.
Mobile IP and Dynamic IP Tunnels
The Mobile IP application can create dynamic point-to-point GRE and DVMRP tunnels.
The Mobile IP application is a tunneling-based solution that enhances the utility of E
Series Broadband Services Routers at the edge of the network between fixed wire
and wireless network domains. This tunneling-based solution enables a router on a
user's home subnet to intercept and forward IP packets to users while they roam
beyond traditional network boundaries.
To achieve mobility, the mobile node takes a secondary IP address that matches the
new network and redirects the traffic bound to the primary or home address to the
mobile node's new network. In the Mobile IP feature, the two agents that accomplish
this task are the home agent and the foreign agent.
The Mobile IP application can create a dynamic IP tunnel using the attributes in a
default destination profile or a customized destination profile.
When creating the dynamic IP tunnel, the Mobile IP application assigns its name
using the following format:
mobileIp-dynamic-
number
When the Mobile IP application creates the dynamic IP tunnel, it sets a Don't
Fragment bit in the packet and in the outer IP header.
The Mobile IP home agent uses the dynamic IP tunnel for routing loop detection.
The home agent examines packets that are intercepted by the home agent and
destined for the mobile node. If the packet is already encapsulated, and the inner
destination address is the same as the outer destination address, then the system
examines the outer source address. If the outer source address is the same as the
tunnel destination address or the foreign agent care-of-address (CoA), the system
silently discards the packet. In all other cases, the tunnel encapsulation is successful.
262
■
Dynamic IP Tunnel Overview
JUNOSe 11.1.x IP Services Configuration Guide
Содержание IP SERVICES - CONFIGURATION GUIDE V 11.1.X
Страница 6: ...vi...
Страница 8: ...viii JUNOSe 11 1 x IP Services Configuration Guide...
Страница 18: ...xviii Table of Contents JUNOSe 11 1 x IP Services Configuration Guide...
Страница 20: ...xx List of Figures JUNOSe 11 1 x IP Services Configuration Guide...
Страница 22: ...xxii List of Tables JUNOSe 11 1 x IP Services Configuration Guide...
Страница 28: ...2 Chapters JUNOSe 11 1 x IP Services Configuration Guide...
Страница 138: ...112 Monitoring J Flow Statistics JUNOSe 11 1 x IP Services Configuration Guide...
Страница 286: ...260 Monitoring IP Tunnels JUNOSe 11 1 x IP Services Configuration Guide...
Страница 312: ...286 Monitoring IP Reassembly JUNOSe 11 1 x IP Services Configuration Guide...
Страница 357: ...Part 2 Index Index on page 333 Index 331...
Страница 358: ...332 Index JUNOSe 11 1 x IP Services Configuration Guide...