Release notes - H3C S9500-CMW310-R1652P03

Hangzhou H3C Technologies Co., Ltd.
H3C S9500-CMW310-R1652P03
Release Notes
2010-9-27 Page 13 of 56
19. Limitation 19
【MPLS】LDP does not distribute the Forwarding Equivalence Classes (FEC) with a
32-bit subnet masks of their vlan-interfaces. If you want to use the LSPs of this type
of FEC, you must configure the corresponding static LSP manually.
20. Limitation 20
【MPLS】 In an L2VPN network with kompella mode, all the PEs are recommended
to be fully connected. It is recommended not to use BGP reflectors; otherwise, some
L2VPN connections will fail to be established in case that many L2VPN connections
need to be established.
21. Limitation 21
【Multicast】In the case of multicast MSDP trans-domain networking, the static RP
(Rendezvous Point) mode should be configured. Otherwise, RP dynamic switchover
will make MSDP unable to send the SA (Source Active) messages across the
domains.
22. Limitation 22
【Multicast】If the ECMP routes exist on the upstream and downstream switches, the
ASSERT mechanism is not supported, in which case the PIM SM is recommended.
Otherwise, many copies of multicast packets will impact the downstream switch
running PIM DM.
23. Limitation 23
【 Multicast】 The multicast flows with IP address ranges as X.0.0.X, X.128.0.X,
X.0.1.1 and X.128.1.1 are sent to the CPU for processing as the protocol packets. So
such IP addresses cannot be used as our multicast addresses. Otherwise, the entries
of these multicast addresses cannot be established normally, which will cause
multicast forward failure.
24. Limitation 24
【Multicast】In case of large traffic, the duplication capability of the trunk port is only
35 copies. If multicast packets need to be copied to over 35 VLANs from the one port,
the multicast VLAN is recommended, or packet loss may occur during packet
forwarding.
25. Limitation 25
【Multicast】In the PIM DM mode, it is suggested that the number of the multicast
flows in the same group, but from different sources, be no more than 64. Otherwise, it