Chapter 5
Setup and Configuration
RUGGEDCOM ROX II
User Guide
570 Enabling and Configuring GMRP
• Source S1 transmits multicast traffic to Port D2 which is forwarded via Port D1, which has previously become a
member of Multicast Group 1.
• Switch B forwards the Group 1 multicast via Port B4 towards Switch E.
• Switch E forwards the Group 1 multicast via Port E2, which has been statically configured for membership in
Multicast Group 1.
• Host H1, connected to Port E2, thus receives the Group 1 multicast.
• Source S2 transmits multicast traffic to Port A2, which is then forwarded via port A1, which has previously
become a member of Multicast Group 2.
• Switch B forwards the Group 2 multicast via Port B2 towards Switch C.
• Switch C forwards the Group 2 multicast via Port C2, which has previously become a member of Group 2.
• Ultimately, Host H2, connected to Port C2, receives the Group 2 multicast.
Section 5.25.2
Enabling and Configuring GMRP
To enable and configure GMRP (GARP Multicast Registration Protocol), do the following:
1. Change the mode to Edit Private or Edit Exclusive.
2. Navigate to switch » mcast-filtering. The GMRP form appears.
Figure 661: GMRP Form
1. Enabled Check Box 2. RSTP Flooding Check Box 3. Leave Timer Box
3. Configure the following parameter(s) as required:
Parameter Description
Enabled Default: false
GMRP Enable
RSTP Flooding Determines whether or not multicast streams will be flooded out of all Rapid Spanning
Tree Protocol (RSTP) non-edge ports upon detection of a topology change. Such
flooding is desirable, if multicast stream delivery must be guaranteed without
interruption.
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