# CCIP Operations Runbook

## Overview

This runbook provides operational procedures for managing CCIP (Chainlink Cross-Chain Interoperability Protocol) on the DeFi Oracle Meta Mainnet.

## Daily Operations

### Health Checks

1. **Check CCIP Router Status**
   ```bash
   kubectl get pods -n besu-network -l app=ccip-router
   kubectl logs -n besu-network -l app=ccip-router --tail=100
   ```

2. **Check Message Processing**
   ```bash
   # Check recent messages
   cast logs --from-block latest-100 --address $CCIP_SENDER --rpc-url $RPC_URL | grep MessageSent
   ```

3. **Monitor Metrics**
   - Message send success rate
   - Message delivery latency
   - Fee consumption
   - Error rates

### LINK Balance Monitoring

1. **Check Balance**
   ```bash
   cast call $LINK_TOKEN "balanceOf(address)" $CCIP_SENDER --rpc-url $RPC_URL
   ```

2. **Set Alert Threshold**
   - Alert when balance < 10 LINK
   - Alert when balance < 5 LINK (critical)

3. **Refill Balance**
   ```bash
   cast send $LINK_TOKEN "transfer(address,uint256)" $CCIP_SENDER $AMOUNT \
     --rpc-url $RPC_URL --private-key $PRIVATE_KEY
   ```

## Weekly Operations

### Review Message Statistics

1. **Message Volume**
   - Total messages sent
   - Success rate
   - Average latency

2. **Fee Analysis**
   - Total fees spent
   - Average fee per message
   - Fee trends

3. **Error Analysis**
   - Error types
   - Error frequency
   - Root causes

### Performance Review

1. **Latency Analysis**
   - Average delivery time
   - P95/P99 latency
   - Outliers

2. **Throughput**
   - Messages per hour/day
   - Peak load times
   - Capacity planning

## Monthly Operations

### Security Review

1. **Access Control Audit**
   - Review authorized senders/receivers
   - Check for unauthorized access
   - Verify role assignments

2. **Message Validation**
   - Review message format compliance
   - Check for anomalies
   - Verify replay protection

### Cost Optimization

1. **Fee Optimization**
   - Review fee trends
   - Identify optimization opportunities
   - Implement improvements

2. **Message Optimization**
   - Reduce message size
   - Batch updates when possible
   - Optimize encoding

## Incident Response

### Message Delivery Failure

1. **Identify Issue**
   - Check message status
   - Verify target chain status
   - Check router logs

2. **Diagnose**
   - Check LINK balance
   - Verify router configuration
   - Check target chain connectivity

3. **Resolve**
   - Fix underlying issue
   - Resend message if needed
   - Update configuration if required

### High Error Rate

1. **Investigate**
   - Check error logs
   - Identify error patterns
   - Review recent changes

2. **Mitigate**
   - Pause sending if critical
   - Fix root cause
   - Resume operations

### Router Unavailable

1. **Check Status**
   - Verify router deployment
   - Check service health
   - Review logs

2. **Recovery**
   - Restart router if needed
   - Verify connectivity
   - Test message sending

## Maintenance

### Contract Upgrades

1. **Plan Upgrade**
   - Review upgrade proposal
   - Test in staging
   - Schedule maintenance window

2. **Execute Upgrade**
   - Pause operations
   - Deploy new contracts
   - Update configurations
   - Resume operations

3. **Verify**
   - Test message sending
   - Verify message receiving
   - Monitor for issues

### Configuration Changes

1. **Review Impact**
   - Assess change impact
   - Test in staging
   - Plan rollback

2. **Apply Changes**
   - Update configuration
   - Monitor closely
   - Verify functionality

## Monitoring

### Key Metrics

- `ccip_messages_sent_total`: Total messages sent
- `ccip_messages_received_total`: Total messages received
- `ccip_message_latency_seconds`: Message delivery latency
- `ccip_fees_total`: Total LINK spent on fees
- `ccip_errors_total`: Total errors

### Alerts

- High error rate (> 5%)
- Low success rate (< 95%)
- High latency (> 5 minutes)
- Low LINK balance (< 10 LINK)
- Router unavailable

## References

- [CCIP Integration Guide](../docs/CCIP_INTEGRATION.md)
- [CCIP Router Setup](../docs/CCIP_ROUTER_SETUP.md)
- [CCIP Troubleshooting](../docs/CCIP_TROUBLESHOOTING.md)
- [CCIP Incident Response](ccip-incident-response.md)