User's Manual
Table Of Contents
- Chapter 1 INTRODUCTION
- Chapter 2 INSTALLATION
- Chapter 3 witch Management
- Chapter 4 Basic Switch Configuration
- Chapter 5 File System Operations
- Chapter 6 Cluster Configuration
- Chapter 7 USB Function Configuration
- Chapter 8 Device Management
- Chapter 9 Port Configuration
- Chapter 10 Port Isolation Function Configuration
- Chapter 11 Port Loopback Detection Function Configuration
- Chapter 12 ULDP Function Configuration
- Chapter 13 LLDP Function Operation Configuration
- Chapter 14 Port Channel Configuration
- Chapter 15 MTU Configuration
- Chapter 16 bpdu-tunnel-protocol Configuration
- Chapter 17 DDM Configuration
- Chapter 18 EFM OAM Configuration
- Chapter 19 LLDP-MED
- Chapter 20 PORT SECURITY
- Chapter 21 QSFP+ Port Split and Combination Configuration
- Chapter 22 VLAN Configuration
- Chapter 23 MAC Table Configuration
- Chapter 24 MSTP Configuration
- Chapter 25 QoS Configuration
- Chapter 26 PBR Configuration
- Chapter 27 IPv6 PBR Configuration
- Chapter 28 Flow-based Redirection
- Chapter 29 Egress QoS Configuration
- Chapter 30 Flexible QinQ Configuration
- Chapter 31 Layer 3 Management Configuration
- Chapter 32 ARP Scanning Prevention Function Configuration
- Chapter 33 Prevent ARP, ND Spoofing Configuration
- Chapter 34 ARP GUARD Configuration
- Chapter 35 Gratuitous ARP Configuration
- Chapter 36 DHCP Configuration
- Chapter 37 DHCPv6 Configuration
- Chapter 38 DHCP option 82 Configuration
- Chapter 39 DHCPv6 option37, 38
- Chapter 40 DHCP Snooping Configuration
- Chapter 41 DHCP option 60 and option 43
- Chapter 42 IPv4 Multicast Protocol
- Chapter 43 IPv6 Multicast Protocol
- Chapter 44 Multicast VLAN
- Chapter 45 ACL Configuration
- Chapter 46 Self-defined ACL Configuration
- Chapter 47 802.1x Configuration
- 47.1 Introduction to 802.1x
- 47.2 802.1x Configuration Task List
- 47.3 802.1x Application Example
- 47.4 802.1x Troubleshooting
- Chapter 48 The Number Limitation Function of MAC and IP in Port, VLAN Configuration
- 48.1 Introduction to the Number Limitation Function of MAC and IP in Port, VLAN
- 48.2 The Number Limitation Function of MAC and IP in Port, VLAN Configuration Task Sequence
- 48.3 The Number Limitation Function of MAC and IP in Port, VLAN Typical Examples
- 48.4 The Number Limitation Function of MAC and IP in Port, VLAN Troubleshooting Help
- Chapter 49 Operational Configuration of AM Function
- Chapter 50 Security Feature Configuration
- 50.1 Introduction to Security Feature
- 50.2 Security Feature Configuration
- 50.2.1 Prevent IP Spoofing Function Configuration Task Sequence
- 50.2.2 Prevent TCP Unauthorized Label Attack Function Configuration Task Sequence
- 50.2.3 Anti Port Cheat Function Configuration Task Sequence
- 50.2.4 Prevent TCP Fragment Attack Function Configuration Task Sequence
- 50.2.5 Prevent ICMP Fragment Attack Function Configuration Task Sequence
- 50.3 Security Feature Example
- Chapter 51 TACACS+ Configuration
- Chapter 52 RADIUS Configuration
- Chapter 53 SSL Configuration
- Chapter 54 IPv6 Security RA Configuration
- Chapter 55 VLAN-ACL Configuration
- Chapter 56 MAB Configuration
- Chapter 57 PPPoE Intermediate Agent Configuration
- Chapter 58 SAVI Configuration
- Chapter 59 Captive Portal Authentication
- 59.1 Captive Portal Authentication Configuration
- 59.2 Accounting Function Configuration
- 59.3 Free-resource Configuration
- 59.4 Authentication White-list Configuration
- 59.5 Automatic Page Pushing after Successful Authentication (it is not supported currently)
- 59.6 http-redirect-filter
- 59.7 Portal Non-perception
- 59.8 Portal Escaping
- Chapter 60 VRRP Configuration
- Chapter 61 IPv6 VRRPv3 Configuration
- Chapter 62 MRPP Configuration
- Chapter 63 ULPP Configuration
- Chapter 64 ULSM Configuration
- Chapter 65 Mirror Configuration
- Chapter 66 RSPAN Configuration
- Chapter 67 SNTP Configuration
- Chapter 68 NTP Function Configuration
- Chapter 69 DNSv4/v6 Configuration
- Chapter 70 Summer Time Configuration
- Chapter 71 Monitor and Debug
- Chapter 72 Reload Switch after Specified Time
- Chapter 73 Debugging and Diagnosis for Packets Received and Sent by CPU
- Chapter 74 VSF
- Chapter 75 SWITCH OPERATION
- Chapter 76 TROUBLESHOOTING
- Chapter 77 APPENDIX A
- Chapter 78 GLOSSARY
Configuration Guide of XGS-5240-Series
43-1
Chapter 43 IPv6 Multicast Protocol
43.1 MLD
43.1.1
Introduction to MLD
MLD (Multicast Listener Discovery) is the multicast group member (receiver) discov
ery protocol serving IPv6 multicast. It is similar to IGMP Protocol in IPv4 multicast appli
cation. Correspondingly, MLD Protocol version1 is similar to IGMP Protocol version2, an
d MLD Protocol version2 is similar to IGMP Protocol version3. Current firmware suppo
rts MLDv1/ MLDv2.
The IPv6 multicast hosts can join or leave from multicast group at any location, an
y time, regardless of the total number of group members. It is unnecessary and imposs
ible for multicast switch to store the relationship among all host members. Multicast swi
tch simply finds out via MLD protocol if there are receivers of certain multicast group o
n the network segment connected to each port. The only thing host need to do is to k
eep the record of which multicast groups it joined.
MLD is unsymmetrical between host and switch: the host needs to respond the ML
D query message of multicast switch with membership report message; the switch perio
dically sends membership query message and determines if there is host joining a spe
cific group in its subnetworks according to the response message received, and after it
receives the report of a host quitting from the group, it sends out the query for the gr
oup to confirm if there is no member left in it.
There are three types of protocol messages of MLD Protocol, that is, Query, Repo
rt and Done (which is corresponding to Leave of IGMPv2). Like IGMPV2, the Query m
essages include General Query and Specific Group Query. General Query uses the mul
ticast address FF02::1 of hosts as destination address, the group address is 0; and Sp
ecific Group Query use its group address as destination address. The multicast address
es of MLD use 130, 131 and 132 as data types denoting the three kinds of messages
mentioned above. Other logic is basically same as IGMPv2.
MLD protocol version2 use FF02::16 as destination address of membership report, and
143 as data type. The other logic of MLD Protocol version2 is similar to IGMP Protocol
version3.
43.1.2 MLD Configuration Task List