用三层交换机S5500实现VLAN组播的问题

查看相应的配置也是生效的，但是组播报文就是不转发，难道和报文格式有关系？

就一个普通的组播报文而已，带不带VLAN100 TAG都不转发。

[H3C]display igmp-snooping group
  Total 2 IP Group(s).
  Total 2 IP Source(s).
  Total 2 MAC Group(s).

  Port flags: D-Dynamic port, S-Static port, C-Copy port
  Subvlan flags: R-Real VLAN, C-Copy VLAN
  Vlan(id):10.
    Total 1 IP Group(s).
    Total 1 IP Source(s).
    Total 1 MAC Group(s).
    Router port(s):total 0 port(s).
    IP group(s):the following ip group(s) match to one mac group.
      IP group address:239.1.1.10
        (0.0.0.0, 239.1.1.10):
          Host port(s):total 1 port(s).
            GE1/0/2                   (S)
    MAC group(s):
      MAC group address:0100-5e01-010a
          Host port(s):total 1 port(s).
            GE1/0/2

  Vlan(id):100.
    Total 1 IP Group(s).
    Total 1 IP Source(s).
    Total 1 MAC Group(s).
    Router port(s):total 1 port(s).
            GE1/0/8                   (S)
    IP group(s):the following ip group(s) match to one mac group.
      IP group address:239.1.1.10
        (0.0.0.0, 239.1.1.10):
          Host port(s):total 0 port(s).
    MAC group(s):
      MAC group address:0100-5e01-010a
          Host port(s):total 0 port(s).

[H3C]display multicast-vlan
 Total 1 multicast-vlan(s)
 Multicast vlan 100
   subvlan list:
    vlan 10  20  30
   port list:
    no port

[H3C]display vlan
 Total 5 VLAN exist(s).
 The following VLANs exist:
  1(default), 10, 20, 30, 100,