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NE40E V800R010C10SPC500 Feature Description - IP Services 01

This is NE40E V800R010C10SPC500 Feature Description - IP Services
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Appendix: Default Hash Factors

Appendix: Default Hash Factors

ECMP (Route & Tunnel) Load Balance

Table 8-1 Default Hash Factors in ECMP Load Balance Scenario
Scenarios Traffic Type Default Hash Factors
IPv4 unicast forwarding (including IPv4 L3VPN forwarding on Ingress PE(AC->MPLS or AC->AC)) TCP/UDP 5-tuple <source IP, destination IP, source port number, destination port number, protocol number>
Non-TCP/non-UDP 2-tuple <source IP, destination IP>

IPv6 unicast forwarding (including IPv6 L3VPN forwarding on Ingress PE(AC->MPLS or AC->AC))

TCP/UDP 5-tuple <source IPv6, destination IPv6, source port number, destination port number, protocol number>
Non-TCP/non-UDP 2-tuple <source IPv6, destination IPv6>

MPLS forwarding (P nodes in MPLS scenarios)

(MPLS->MPLS)

Number of Labels is not more than 4
  • If the IP header is next to MPLS label stack:
    • TCP/UDP: 5-tuple <source IP, destination IP, source port number, destination port number, protocol number>
    • Non-TCP/non-UDP: 2-tuple <source IP, destination IP>
  • If the IP header is not next to MPLS label stack or there is no IP header: bottom-of-stack label
Number of Labels is not less than 5 Fifth label from the top

VPLS forwarding on Ingress PE

(AC->MPLS)

TCP/UDP 5-tuple <source IP, destination IP, source port number, destination port number, protocol number>
Non-TCP/non-UDP 2-tuple <source IP, destination IP>
Non-IP 2-tuple <source MAC, destination MAC>

VLL forwarding on Ingress PE

(AC->MPLS)

IP carrying TCP/UDP 5-tuple <source IP, destination IP, source port number, destination port number, protocol number>
IP carrying non-TCP/non-UDP 2-tuple <source IP, destination IP>
Ethernet carrying non-IP VC label
Non-Ethernet carrying Non-IP VC label

Trunk Load Balance

Table 8-2 Default Hash Factors in Trunk Load Balance Scenario
Scenarios Traffic Type Default Hash Factors
L3 forwarding (including IPv4 L3VPN forwarding on Ingress PE) IPv4 unicast TCP/UDP 5-tuple <source IP, destination IP, source port number, destination port number, protocol number>
Non-TCP/non-UDP 2-tuple <source IP, destination IP>
IPv6 unicast TCP/UDP 5-tuple <source IPv6, destination IPv6, source port number, destination port number, protocol number>
Non-TCP/non-UDP 2-tuple <source IPv6, destination IPv6>
MPLS forwarding MPLS Number of labels is not more than 4
  • If the IP header is next to MPLS label stack:

    - TCP/UDP: 5-tuple <source IP, destination IP, source port number, destination port number, protocol number>

    - non-TCP/non-UDP: 2-tuple <source IP, destination IP>2)

  • IP header is not next to MPLS label stack or there is no IP header: bottom-of-stack label
Number of labels is not less than 5 Fifth label from the top of the stack
Bridged forwarding, and VPLS forwarding on PE (AC->MPLS or AC->AC) IPv4 TCP/UDP 5-tuple <source IP, destination IP, source port number, destination port number, protocol number>
Non-TCP/non-UDP 2-tuple <source IP, destination IP>
IPv6 TCP/UDP 5-tuple <source IPv6, destination IPv6, source port number, destination port number, protocol number>
Non-TCP/non-UDP 2-tuple <source IPv6, destination IPv6>
MPLS 2-tuple <source MAC, destination MAC>
Non-MPLS and Non-IP 2-tuple <source MAC, destination MAC>
VPLS forwarding on egress PE (MPLS->AC) Ethernet carrying IP TCP/UDP 5-tuple <source IP, destination IP, source port number, destination port number, protocol number>
Non-TCP/non-UDP 2-tuple <source IP, destination IP>
Ethernet carrying non-IP 2-tuple <source MAC, destination MAC>
VLL forwarding on ingress PE (AC->MPLS), VLL local connection (AC->AC) IPv4 TCP/UDP 5-tuple <source IP, destination IP, source port number, destination port number, protocol number>
Non-TCP/non-UDP 2-tuple <source IP, destination IP>
IPv6 TCP/UDP 5-tuple <source IP, destination IP, source port number, destination port number, protocol number>
Non-TCP/non-UDP 2-tuple <source IP, destination IP>
Ethernet carrying MPLS VC label
Ethernet carrying non-IP and non-MPLS VC label
Non-Ethernet carrying non-IP VC label
VLL forwarding on egress PE (MPLS->AC) IPv4/IPv6 TCP/UDP 5-tuple <source IP, destination IP, source port number, destination port number, protocol number>
Non-TCP/non-UDP 2-tuple <source IP, destination IP>
Non-IP VC label
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Updated: 2019-01-03

Document ID: EDOC1100055041

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