Multicast Features
NOTE:
Multicast routing is supported on secondary IP addresses; it is not supported on IPv6.
NOTE:
Multicast routing is supported across default and non-default virtual routing and forwarding (VRFs).
The Dell Networking operating system (OS) supports the following multicast protocols:
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Internet Group Management Protocol (IGMP)
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Multicast Source Discovery Protocol (MSDP)
Topics:
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Enabling IP Multicast
Before enabling any multicast protocols, you must enable IP multicast routing. To enable multicast routing,
use the following command.
• Enable multicast routing.
CONFIGURATION mode
ip multicast-routing
Implementation Information
Because protocol control traffic in the Dell Networking OS is redirected using the MAC address, and multicast
control traffic and multicast data traffic might map to the same MAC address, the Dell Networking OS might
forward data traffic with certain MAC addresses to the CPU in addition to control traffic.
As the upper five bits of an IP Multicast address are dropped in the translation, 32 different multicast group IDs
map to the same Ethernet address. For example, 224.0.0.5 is a known IP address for open shortest path first
(OSPF) that maps to the multicast MAC address 01:00:5e:00:00:05. However, 225.0.0.5, 226.0.0.5, and so on,
map to the same multicast MAC address. The Layer 2 forwarding information base (FIB) alone cannot
differentiate multicast control traffic and multicast data traffic with the same address, so if you use IP address
225.0.0.5 for data traffic, both the multicast data and OSPF control traffic match the same entry and are
forwarded to the CPU. Therefore, do not use well-known protocol multicast addresses for data transmission,
such as the following:
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Multicast Features
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Содержание S4048T
Страница 1: ...Dell Configuration Guide for the S4048T ON System 9 10 0 1 ...
Страница 98: ... saveenv 7 Reload the system uBoot mode reset Management 98 ...
Страница 113: ...Total CFM Pkts 10303 CCM Pkts 0 LBM Pkts 0 LTM Pkts 3 LBR Pkts 0 LTR Pkts 0 802 1ag 113 ...
Страница 411: ...mode transit no disable Force10 Resilient Ring Protocol FRRP 411 ...
Страница 590: ...Figure 67 Inspecting the LAG Configuration Link Aggregation Control Protocol LACP 590 ...
Страница 591: ...Figure 68 Inspecting Configuration of LAG 10 on ALPHA Link Aggregation Control Protocol LACP 591 ...
Страница 594: ...Figure 70 Inspecting a LAG Port on BRAVO Using the show interface Command Link Aggregation Control Protocol LACP 594 ...
Страница 595: ...Figure 71 Inspecting LAG 10 Using the show interfaces port channel Command Link Aggregation Control Protocol LACP 595 ...
Страница 646: ...Figure 87 Configuring Interfaces for MSDP Multicast Source Discovery Protocol MSDP 646 ...
Страница 647: ...Figure 88 Configuring OSPF and BGP for MSDP Multicast Source Discovery Protocol MSDP 647 ...
Страница 648: ...Figure 89 Configuring PIM in Multiple Routing Domains Multicast Source Discovery Protocol MSDP 648 ...
Страница 653: ...Figure 91 MSDP Default Peer Scenario 2 Multicast Source Discovery Protocol MSDP 653 ...
Страница 654: ...Figure 92 MSDP Default Peer Scenario 3 Multicast Source Discovery Protocol MSDP 654 ...
Страница 955: ...Figure 119 Single and Double Tag First byte TPID Match Service Provider Bridging 955 ...
Страница 1179: ...Figure 147 Create Hypervisor Figure 148 Edit Hypervisor Figure 149 Create Transport Connector Virtual Extensible LAN VXLAN 1179 ...