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title: EVPN VLAN-Aware Bundle Service « ipSpace.net blog
description: A deep dive into the EVPN VLAN-Aware Bundle Service defined in RFC 7432, which allows multiple VLANs to share the same MPLS pseudowires while maintaining...
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# EVPN VLAN-Aware Bundle Service « ipSpace.net blog

**[ipSpace.net Blog](https://daily.dev/sources/ipspace)** · 6 min read · 0 upvotes · 0 comments

## Summary

A deep dive into the EVPN VLAN-Aware Bundle Service defined in RFC 7432, which allows multiple VLANs to share the same MPLS pseudowires while maintaining separate bridging (MAC address) tables. The post explains how this differs from VLAN-Based and VLAN Bundle services, demonstrates the behavior using Arista EOS lab configs showing that all mac-ip (RT2) and imet (RT3) routes share the same MPLS label, and clarifies that 802.1Q tagged packets must be sent over MPLS wires so the PE can determine which MAC table to use. The author is skeptical of the service's practical value — the only savings are MPLS labels and configuration lines — and concludes with a strong recommendation against using it, though commenters note real-world use cases such as platform MAC-VRF instance limits and large-scale VLAN deployments managed without automation.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://blog.ipspace.net/2022/10/evpn-vlan-aware-bundle-service>

## Questions this post answers

### In EVPN VLAN-Aware Bundle Service, do all VLANs in the bundle share the same MPLS label?

Yes. In EVPN VLAN-Aware Bundle Service, all mac-ip (RT2) routes and all imet (RT3) routes for every VLAN in the bundle share the same MPLS label. Because the ingress PE cannot determine the destination MAC table from the label alone, 802.1Q-tagged packets must be sent over the MPLS pseudowire so the egress PE can map the frame to the correct per-VLAN bridging table.

_Network engineers evaluating EVPN label-sharing trade-offs find the latest analysis on daily.dev._

### What is the difference between EVPN VLAN Bundle Service and VLAN-Aware Bundle Service in RFC 7432?

VLAN Bundle Service maps multiple VLANs to a single shared bridging table, effectively emulating a single outer VLAN in Q-in-Q bridging. VLAN-Aware Bundle Service also groups VLANs onto shared MPLS pseudowires but gives each VLAN its own separate MAC address table, requiring 802.1Q tags inside the MPLS tunnel to identify the correct table on the egress PE.

_Teams deciding between EVPN service models track RFC implementation nuances on daily.dev._

## Similar posts on daily.dev

- [EVPN with SR-MPLS Core « ipSpace.net blog](https://daily.dev/posts/evpn-with-sr-mpls-core-ipspace-net-blog-taobtibzc) · ipSpace.net Blog · 0 upvotes · 0 comments

---

Tags: [#networking](https://daily.dev/tags/networking), [#bgp](https://daily.dev/tags/bgp)

[View this post on daily.dev](https://daily.dev/posts/evpn-vlan-aware-bundle-service-ipspace-net-blog-bj1bnenjm)

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