• PE1 configured to forward traffic from I-SID range 256-276 and backup for I-SID 277-286. PE2 configured
to behave in the opposite manner of PE1
• EVI carrying traffic from two I-SIDs
• PBB I-SID values must match among PEs connected to a common dual homed site
• ICCP must be configured in PE1, PE2 using a new mode (mode singleton); where no ICCP neighbor is
configured. ICCP configuration required to handle core isolation failures. Example uses same MLACP
system mac/priority and unique MLACP node values on PE1/PE2
• ESI must be identical between PEs for a dual homed site. User configuration must be entered to guarantee
that
• PBB source MAC must be different on each PE connected to a dual homed site. Example below customizes
PBB source MAC value via configuration for easier tracking
• CE must be configured with two bundle interfaces. One for each set of member interfaces leading to a
different PE
• BGP RD/RT auto-derived from BGP ASN and EVI ID
Figure 52: PBB EVPN on Dual Homed Device/Multi Homed Device with Active/Active per Service load-balancing and Manual Service
Carving
Configuration on PE1:
redundancy
iccp
group 66
mlacp node 1
mlacp system mac 0aaa.0bbb.0ccc
mlacp system priority 1
backbone interface GigabitEthernet0/1/0/2
mode singleton
interface Bundle-Ether1
mlacp iccp-group 66
interface bundle-Ether1.1 l2transport
encapsulation dot1q 10
interface bundle-Ether1.20 l2transport
encapsulation dot1q 20
evpn
interface bundle-Ether1
L2VPN and Ethernet Services Configuration Guide for Cisco ASR 9000 Series Routers, IOS XR Release 6.3.x
407
Implementing IEEE 802.1ah Provider Backbone Bridge
PBB EVPN on Dual Homed Device/Multi Homed Device with Active/Active per Service load-balancing and Manual Service Carving
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