Damien/arista-evpn-vxlan-clab
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Author SHA1 Message Date
Damien
8ea0fdcf64 adapt line width 2025-12-14 19:02:33 +00:00
Damien
308781e6eb Update readme 2025-12-04 10:12:06 +00:00
Damien
51f21f16c9 Add topology visualization and annotations 
Add SVG topology diagram and containerlab annotations file with AS number labels and node positioning for the EVPN VXLAN lab environment.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-12-04 10:11:03 +00:00
Damien
1a084d0c3f Add detailed information to README 
Expanded the README to provide more details about the configuration,
including:

- AS Numbers
- IP Addressing (Management, Loopback, Underlay P2P, Host)
- VXLAN Network Identifiers (VNI)
- Features Implemented
- Test Connectivity
 2025-11-30 19:16:56 +00:00
Damien Arnodo
db54e56b41 chore: Repository cleanup - Remove unnecessary files (#16) 
## Summary

Repository cleanup to remove unnecessary files and streamline documentation after the successful EVPN-VXLAN lab implementation.

Closes #15

---

## Changes

### Files Removed (13 files total)

**Scripts folder:**
- `scripts/deploy.sh`
- `scripts/test-connectivity.sh`
- `scripts/cleanup.sh`

**Root-level markdown files:**
- `BRANCH_SUMMARY.md`
- `BUGFIX_EVPN_ACTIVATION.md`
- `DEPLOYMENT_GUIDE.md`
- `FIXES_APPLIED.md`
- `TESTING_CHECKLIST.md`
- `VLAN_TAGGING_FIX_EXPLANATION.md`

**docs/ folder (entire folder removed):**
- `docs/HOST_INTERFACE_CONFIGURATION.md`
- `docs/configuration-guide.md`
- `docs/quick-reference.md`
- `docs/validation-commands.md`

### Files Updated
- `hosts/README.md` - Fixed broken links
- `README.md` - Updated repository structure section

---

## Final Repository Structure

```
├── .gitignore
├── README.md                    # Main documentation
├── TROUBLESHOOTING.md           # Troubleshooting guide
├── END_TO_END_TESTING.md        # Testing procedures
├── evpn-lab.clab.yml            # ContainerLab topology
├── configs/                     # Switch configurations (10 files)
└── hosts/                       # Host interface configs (5 files)
```

---

## Testing

- [x] Lab redeployed successfully with `containerlab deploy -t evpn-lab.clab.yml`
- [x] L2 VXLAN connectivity verified (host1 ↔ host3)
- [x] L3 VXLAN connectivity verified (host2 ↔ host4)
- [x] All BGP EVPN sessions established
- [x] MLAG pairs operational

Reviewed-on: #16
 2025-11-30 19:07:22 +00:00
Damien
1080bf07bb Complete Lab Fixes - L2 and L3 VXLAN Fully Operational (#14) 
## Summary

This PR merges all fixes and improvements from the troubleshooting journey to make the Arista EVPN-VXLAN lab fully operational with both L2 and L3 VXLAN connectivity.

## What's Changed

### 🎯 Major Achievements
- ✅ **L2 VXLAN fully operational** - host1 ↔ host3 connectivity verified
- ✅ **L3 VXLAN fully operational** - host2 ↔ host4 connectivity verified (VRF gold)
- ✅ **LACP bonding working** - dual-homed hosts with proper Port-Channel negotiation
- ✅ **All BGP/EVPN sessions established** - complete underlay and overlay working

### 🔧 Infrastructure Fixes

#### BGP & Routing
- Added `ip routing` command to all spine and leaf switches
- Fixed duplicate BGP network statements on leaf3, leaf4, leaf7, leaf8
- Activated EVPN neighbors on spine switches
- Added loopback network advertisements to BGP

#### MLAG Configuration
- Configured MLAG peer-link in trunk mode (not access) for VLAN 4090/4091
- Added dual-active detection via management interface
- Configured virtual router MAC for MLAG pairs

#### Switch Port Configuration
- Port-Channel1 configured in **trunk mode** on all leaf switches
- Added `switchport trunk allowed vlan` for host VLANs (34, 40, 78)
- Removed `no shutdown` from Port-Channel interfaces

### 🖥️ Host Networking - Complete Redesign

#### Image Change
- **Old:** `alpine:latest` (had bonding syntax issues)
- **New:** `ghcr.io/hellt/network-multitool` (networking tools pre-installed)

#### LACP Bonding Configuration
Proper LACP setup following network-multitool best practices:
```yaml
- ip link add bond0 type bond mode 802.3ad
- ip link set dev bond0 type bond xmit_hash_policy layer3+4
- ip link set dev eth1 down
- ip link set dev eth2 down
- ip link set eth1 master bond0
- ip link set eth2 master bond0
- ip link set dev eth1 up
- ip link set dev eth2 up
- ip link set dev bond0 type bond lacp_rate fast
- ip link set dev bond0 up
```

#### VLAN Configuration
- **L2 VXLAN hosts (host1, host3):** VLAN 40 tagged on bond0
- **L3 VXLAN hosts (host2, host4):** VLANs 34 and 78 tagged on bond0

#### Routing Strategy
- Kept management default route (172.16.0.254 via eth0)
- Added **specific routes** for L3 VXLAN networks instead of default routes:
  - host2: `ip route add 10.78.78.0/24 via 10.34.34.1`
  - host4: `ip route add 10.34.34.0/24 via 10.78.78.1`

### 📁 Files Changed

#### Switch Configurations (Updated)
- `configs/spine1.cfg` - Added ip routing, EVPN activation
- `configs/spine2.cfg` - Added ip routing, EVPN activation
- `configs/leaf1.cfg` - Port-Channel trunk mode, VLAN config
- `configs/leaf2.cfg` - Port-Channel trunk mode, VLAN config
- `configs/leaf3.cfg` - Added ip routing, loopback ads, Port-Channel config
- `configs/leaf4.cfg` - Added ip routing, loopback ads, Port-Channel config
- `configs/leaf5.cfg` - Port-Channel trunk mode, VLAN config
- `configs/leaf6.cfg` - Port-Channel trunk mode, VLAN config
- `configs/leaf7.cfg` - Added ip routing, loopback ads, Port-Channel config
- `configs/leaf8.cfg` - Added ip routing, loopback ads, Port-Channel config

#### Topology (Updated)
- `evpn-lab.clab.yml` - Updated all host configurations with network-multitool image and proper LACP/VLAN setup

#### Documentation (New)
- `hosts/README.md` - Host interface configuration guide
- `hosts/host1_interfaces` - Interface file for host1 (not currently used, kept for reference)
- `hosts/host2_interfaces` - Interface file for host2 (not currently used, kept for reference)
- `hosts/host3_interfaces` - Interface file for host3 (not currently used, kept for reference)
- `hosts/host4_interfaces` - Interface file for host4 (not currently used, kept for reference)

## Testing & Verification

### ✅ L2 VXLAN (VLAN 40)
```
host1 (10.40.40.101) → host3 (10.40.40.103)
- Connectivity: VERIFIED ✓
- VXLAN tunnel: VTEP1 ↔ VTEP3
- MAC learning: Working via EVPN Type-2
```

### ✅ L3 VXLAN (VRF gold)
```
host2 (10.34.34.102) → host4 (10.78.78.104)
- Connectivity: VERIFIED ✓
- Ping results: 0% packet loss, TTL=62
- Routing: Via EVPN Type-5 through fabric
```

### ✅ Infrastructure Status
- BGP Underlay: All sessions ESTAB
- EVPN Overlay: All neighbors ESTAB
- MLAG: All 4 pairs operational
- Port-Channels: LACP negotiated on all hosts

## Related Issues

Fixes #1 - Lab deployment and configuration fixes
Fixes #2 - BGP EVPN neighbors stuck in Connect state
Fixes #3 - Ready for deployment with EVPN activation
Fixes #4 - Lab convergence in progress
Fixes #5 - BGP EVPN neighbors stuck in Active state
Fixes #11 - Host LACP bonding configuration
Fixes #13 - L3 VXLAN default route issue

## Key Technical Learnings

1. **Arista EOS requires explicit `ip routing`** before BGP can function
2. **MLAG peer-link must be trunk mode** to allow VLAN 4090/4091 traversal
3. **VLAN tagging location matters** - hosts tag, switches use trunk mode
4. **network-multitool image** superior to Alpine for LACP bonding
5. **Specific routes better than default routes** when management network present
6. **LACP rate fast** ensures quick negotiation with Arista switches

## Deployment

After merging, deploy with:
```bash
cd ~/arista-evpn-vxlan-clab
sudo containerlab destroy -t evpn-lab.clab.yml --cleanup
sudo containerlab deploy -t evpn-lab.clab.yml
```

No manual post-deployment configuration needed - everything works from initial deployment!

## Breaking Changes

⚠️ **Host image changed** from `alpine:latest` to `ghcr.io/hellt/network-multitool`
⚠️ **Host configuration completely redesigned** - old exec commands replaced

## Reviewers

@Damien - Please review and merge when ready

---

**This PR represents the complete troubleshooting journey and brings the lab to production-ready status with full L2 and L3 VXLAN functionality.** 🚀

Reviewed-on: #14
Co-authored-by: Damien <damien@arnodo.fr>
Co-committed-by: Damien <damien@arnodo.fr>
 2025-11-30 10:24:29 +00:00
Damien Arnodo
9502302b76 Revert topology to original version before accidental commits 2025-11-30 08:55:08 +00:00
Damien Arnodo
d6acdfbe75 Revert accidental commit to main - remove HOST_CONFIGURATION.md 2025-11-30 08:53:58 +00:00
Damien Arnodo
e6210267a6 Revert accidental commit to main - remove host4-interfaces 2025-11-30 08:53:44 +00:00
Damien Arnodo
67816b84a1 Revert accidental commit to main - remove host3-interfaces 2025-11-30 08:53:32 +00:00
Damien Arnodo
aef0890f34 Revert accidental commit to main - remove host2-interfaces 2025-11-30 08:53:21 +00:00
Damien Arnodo
0baec91037 Revert accidental commit to main - remove host interface files 2025-11-30 08:53:11 +00:00
Damien Arnodo
7c08125826 Add comprehensive host interface configuration documentation 2025-11-30 08:21:24 +00:00
Damien Arnodo
e04a531a86 Update topology to use persistent interface files via binds instead of exec commands 2025-11-30 08:20:58 +00:00
Damien Arnodo
926ab47337 Add host4 interface configuration for LACP bonding with VLAN 78 2025-11-30 08:20:31 +00:00
Damien Arnodo
ce76b0c342 Add host3 interface configuration for LACP bonding with VLAN 40 2025-11-30 08:20:26 +00:00
Damien Arnodo
31e1e345cd Add host2 interface configuration for LACP bonding with VLAN 34 2025-11-30 08:20:21 +00:00
Damien Arnodo
050a529c68 Add host1 interface configuration for LACP bonding with VLAN 40 2025-11-30 08:20:16 +00:00
Damien Arnodo
4fc902ee13 Add DEPLOYMENT_GUIDE.md with step-by-step instructions 
Provide clear deployment instructions, verification checklist, and
troubleshooting guidance for the EVPN-VXLAN lab with applied fixes.
 2025-11-28 09:28:13 +00:00
Damien Arnodo
783e12cea6 Add FIXES_APPLIED.md to main branch 
Document all critical fixes discovered during lab testing:
- Spine routing: ip routing command added
- MLAG: static LAG mode enabled
- Pending: port-channel access mode, host networking

Track status of each fix for deployment readiness.
 2025-11-28 09:27:56 +00:00
Damien Arnodo
62efe9fc93 Apply critical fix: Add ip routing command to spine2 
This enables BGP and IP forwarding on spine switches. Without this command,
BGP sessions cannot be established and routing is disabled. This is essential
for the underlay fabric to function properly.
 2025-11-28 09:27:19 +00:00
Damien Arnodo
41a7e5e9e3 Apply critical fix: Add ip routing command to spine1 
This enables BGP and IP forwarding on spine switches. Without this command,
BGP sessions cannot be established and routing is disabled. This is essential
for the underlay fabric to function properly.
 2025-11-28 09:27:03 +00:00
Damien
8c3eb7f2d2 Fix MLAG and host interface configuration 
Changed the channel-group mode to "on" on the host-facing interfaces.

Changed the bonding mode to balance-rr in the clab file.
 2025-11-28 09:15:36 +00:00
Damien
02d41fde2e Add host network addressing and test connectivity steps 
Add host network addressing information. Add L2 and L3 VXLAN testing
steps. Add commands to verify EVPN routes on the switches.
 2025-11-24 20:10:05 +00:00
Damien
8a291426f9 Add admin user configuration to all devices 2025-11-21 12:09:23 +00:00
Damien
3946d6b2e5 Add EOS image to .gitignore and update topology 
Update topology to use arista_ceos kind and new image.
 2025-11-17 19:27:57 +00:00
Damien Arnodo
d2cdab6b5e Add quick reference guide 2025-11-16 15:41:44 +00:00
Damien Arnodo
2759d9cb38 Add .gitignore file 2025-11-16 15:41:05 +00:00
Damien Arnodo
279515edd6 Add comprehensive configuration guide 2025-11-16 15:40:19 +00:00
Damien Arnodo
4991e18430 Add cleanup script 2025-11-16 15:39:20 +00:00
Damien Arnodo
21e1cb2891 Add connectivity test script 2025-11-16 15:38:45 +00:00
Damien Arnodo
600c8e9f57 Add deployment script with interactive menu 2025-11-16 15:38:18 +00:00
Damien Arnodo
222ffb6bb5 Add validation commands documentation 2025-11-16 15:37:49 +00:00
Damien Arnodo
944977510c Add leaf8 configuration with VRF gold and BGP border 2025-11-16 15:37:07 +00:00
Damien Arnodo
61824f2ddf Add leaf7 configuration with VRF gold and BGP border 2025-11-16 15:36:49 +00:00
Damien Arnodo
a1b87aabeb Add leaf6 configuration 2025-11-16 15:36:31 +00:00
Damien Arnodo
c90a104528 Add leaf5 configuration 2025-11-16 15:36:16 +00:00
Damien Arnodo
18f2f88440 Add leaf4 configuration with VRF gold 2025-11-16 15:36:02 +00:00
Damien Arnodo
2e025f7116 Add leaf3 configuration with VRF gold 2025-11-16 15:35:47 +00:00
Damien Arnodo
15d5d4017c Add leaf2 configuration 2025-11-16 15:35:29 +00:00
Damien Arnodo
471722f0b5 Add leaf1 configuration 2025-11-16 15:35:13 +00:00
Damien Arnodo
f7dc787960 Add spine2 configuration 2025-11-16 15:34:50 +00:00
Damien Arnodo
1d2b843d45 Add spine1 configuration 2025-11-16 15:34:37 +00:00
Damien Arnodo
0ea0e8c740 Add comprehensive README 2025-11-16 15:34:18 +00:00
Damien Arnodo
240f5493ed Add ContainerLab topology file 2025-11-16 15:33:43 +00:00