Date created: Sunday, April 14, 2013 5:24:29 PM. Last modified: Wednesday, September 27, 2017 3:44:15 PM
Per Flow Load-Balancing Without FAT
Per-packet style load balancing can only be achieved using the interface sub-command "ip load-sharing per-packet" if MPLS FAT labels aren't supported (or Entropy labels with ELI). This example without FAT labels balances all traffic there for between P1 and P2 over the ECMPs but the PEs (edge LSRs) have no control over that so its not much good:
References:
https://sites.google.com/site/amitsciscozone/home/important-tips/mpls-wiki/fat-and-entropy-labels
http://www.cisco.com/en/US/docs/ios-xml/ios/mp_l2_vpns/configuration/12-2sy/mp-l2-vpns-12-2sy-book.pdf
http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/configuration/guide/l2vpn_advanced_vpls.pdf
P1:
interface Loopback0 ip address 10.0.0.1 255.255.255.255 ip ospf 65000 area 0 ! interface FastEthernet0/0 description Link to PE1 f0/0 ip address 10.255.1.1 255.255.255.252 ip ospf 65000 area 0 duplex auto speed auto mpls ip ! interface FastEthernet0/1 no ip address shutdown duplex auto speed auto ! interface FastEthernet1/0 ip address 10.0.0.16 255.255.255.254 ip load-sharing per-packet ip ospf 65000 area 0 duplex auto speed auto mpls ip ! interface FastEthernet1/1 ip address 10.0.0.18 255.255.255.254 ip load-sharing per-packet ip ospf 65000 area 0 duplex auto speed auto mpls ip ! interface FastEthernet2/0 ip address 10.0.0.20 255.255.255.254 ip load-sharing per-packet ip ospf 65000 area 0 duplex auto speed auto mpls ip ! interface FastEthernet2/1 ip address 10.0.0.22 255.255.255.254 ip load-sharing per-packet ip ospf 65000 area 0 duplex auto speed auto mpls ip ! router ospf 65000 log-adjacency-changes
PE1:
pseudowire-class MPWC encapsulation mpls ! interface Loopback0 ip address 10.0.1.1 255.255.255.255 ip ospf 65000 area 0 ! interface FastEthernet0/0 description link to P1 f0/0 ip address 10.255.1.2 255.255.255.252 ip ospf 65000 area 0 duplex auto speed auto mpls ip ! interface FastEthernet0/1 description Link to CE1 f0/1 no ip address duplex auto speed auto xconnect 10.0.2.1 5555 pw-class MPWC ! router ospf 65000 log-adjacency-changes
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