Feature Requirements |
Series |
Models |
|---|---|---|
In an L2VPN over PWE3 scenario where inner and outer VLAN tags carry control words, the egress PE supports only label-based in-depth load balancing, not IP address-based in-depth load balancing. |
NetEngine 8000 F |
NetEngine 8000 F2A/NetEngine 8000 F1A |
AC interfaces:VE interface access is supported. The LDP mode is supported, whereas the BGP mode is not. |
NetEngine 8000 F |
NetEngine 8000 F2A/NetEngine 8000 F1A |
EVC sub-interface access to the VLL has the following restrictions: 1, VLAN or Ethernet encapsulation is supported, without affecting encapsulation of tags that enter the public network. PW tags cannot be configured. 2, Public and private network label EXP priority separation is not supported. 3, Heterogeneous medium is not supported. 4, The access SVC does not support the hard pipe. 5, ETH-OAM services are not supported. 6, CCC is not supported. |
NetEngine 8000 F |
NetEngine 8000 F2A/NetEngine 8000 F1A |
In the MC-PW APS scenario, when E-trunk works in 1:1 mode, service switching fails after the ICB PW fails. Configure LSP APS on the ICB PW. |
NetEngine 8000 F |
NetEngine 8000 F2A/NetEngine 8000 F1A |
The PW redundancy mode has the following restrictions: The BGP mode does not support VLL PW redundancy. |
NetEngine 8000 F |
NetEngine 8000 F2A/NetEngine 8000 F1A |
The PW redundancy mode has the following limitations: In the VLL accessing VPLS scenario, only the master/slave mode is supported. The independent mode is not supported. |
NetEngine 8000 F |
NetEngine 8000 F2A/NetEngine 8000 F1A |
The VPWS flow label has the following restrictions: 1, The public network tunnel type does not support GRE tunnels. 2, The VLL service type does not support the BGP mode. |
NetEngine 8000 F |
NetEngine 8000 F2A/NetEngine 8000 F1A |
VPWS heterogeneous interworking is supported. IPv4 packets are supported, whereas IPv6 packets are not. Otherwise, traffic is interrupted. |
NetEngine 8000 F |
NetEngine 8000 F2A/NetEngine 8000 F1A |
VPWSs support GRE tunnels. ICB PWs do not support GRE tunnels. Otherwise, traffic is interrupted. |
NetEngine 8000 F |
NetEngine 8000 F2A/NetEngine 8000 F1A |
The basic functions of single-ICB PW have the following limitations: 1. A single ICB supports only the 3PE scenario. 2. ICB PW faults are not supported. 3. Load balancing is not supported when traffic is transmitted over the ICB-PW. 4. LDP FRR is not supported. |
NetEngine 8000 F |
NetEngine 8000 F2A/NetEngine 8000 F1A |
The basic functions of single-ICB PW have the following limitations: 1. When E-Trunk is used, the sequence of entry delivery to multiple E-Trunk devices cannot be controlled. As a result, the switchback upon an AC failure is affected by the E-Trunk protocol convergence performance. Packet loss may occur within hundreds of milliseconds or several seconds, or excess packets may be received on the CSG. The CSG may receive excessive packets during the switchover. 2. When E-Trunk associates with BFD for mPW for fast updates, only the scenario where the proportion of E-trunks, Eth-Trunks, and trunk members is 1:1:1 is supported. The scenario where an E-trunk has multiple Eth-Trunks or a trunk has multiple members is not supported. In the mode where BFD for mPW associates with the E-trunk, fast lower-layer trunk switchover is triggered when BFD is Down. If the ICB PW flaps, BFD flaps. As a result, the master/slave E-trunk status flaps, affecting E-trunk switchover. However, packets can be forwarded properly. 3. MPLS QoS based on ICB-PW is not supported. |
NetEngine 8000 F |
NetEngine 8000 F2A/NetEngine 8000 F1A |
Multi-hop tunnel attributes:LDP PW multi-hop end nodes and intermediate nodes do not support GRE tunnels, Otherwise, traffic is interrupted. |
NetEngine 8000 F |
NetEngine 8000 F2A/NetEngine 8000 F1A |
The basic functions of dual-ICB PWs have the following limitations: 1. The control words of ICB-PWs, working PWs, and protection PWs must be the same. 2. The ICB-PW public network does not support ECMP. 3. Secondary faults are not supported. 4. QinQ interfaces on the AC side are not supported. If the preceding limitations are not met, traffic cannot be forwarded. |
NetEngine 8000 F |
NetEngine 8000 F2A/NetEngine 8000 F1A |
Different DiffServ modes can be configured in the inbound and outbound directions of a PE. Hard-pipe static VLLs and DiffServ modes are mutually exclusive. Do not configure any DiffServ mode in hard-pipe scenarios. |
NetEngine 8000 F |
NetEngine 8000 F2A/NetEngine 8000 F1A |
In scenarios where VPWS recurses to an SRv6 TE Policy, the last SID cannot be of the End.X type. As a result, traffic fails to be forwarded. Properly plan services. |
NetEngine 8000 F |
NetEngine 8000 F2A/NetEngine 8000 F1A |
In an MS-PW scenario where primary and secondary PWs are connected to dual-homing RSGs, the settings of parameters (such as the MTU, control word, and TDM interface parameters) on the RSG interfaces with PWs configured must be consistent. If the parameters are configured differently, some services may go down. |
NetEngine 8000 F |
NetEngine 8000 F2A/NetEngine 8000 F1A |
After the device is restarted, as long as the BFD session status is not Up, the primary and secondary PWs are associated for service switching. The PW whose BFD detection status is Up is preferentially served. However, if the primary and secondary PWs are not Up, PW switching is not affected. |
NetEngine 8000 F |
NetEngine 8000 F2A/NetEngine 8000 F1A |
In IP hard-pipe scenarios: 1. If the hard pipe function is enabled in the VSI-LDP view, only static PWs can be configured. A tunnel binding policy must be configured, and the tunnel must be a static bidirectional LSP. Otherwise, services are abnormal. 2. If an LDP peer relationship is established in the VSI-LDP view, no hard pipe can be configured. 3. If QoS has been configured for a PW, no hard pipe can be configured for the PW. 4. Only LDP VSIs are supported. |
NetEngine 8000 F |
NetEngine 8000 F1A |
In an MS-PW scenario where a CSG is dual-homed to ASGs and primary and secondary PWs are configured on the ASGs, VLL redundancy protection must work in master/slave mode. The ASGs cannot determine the active/standby status of PWs. If PW redundancy in independent mode is used, delayed switching does not work. In this case, service interruption lasts for a long time during protection switching. |
NetEngine 8000 F |
NetEngine 8000 F2A/NetEngine 8000 F1A |