OpenStack Neutron Packet Walkthrough (DVR)

David Mahler
David Mahler
80.5 هزار بار بازدید - 8 سال پیش - OpenStack Neutron Packet Walkthrough (DVR).Twitter:
OpenStack Neutron Packet Walkthrough (DVR).
Twitter: @davidmahler
LinkedIn: LinkedIn: davidmahler

Links:
Me: LinkedIn: davidmahler
OpenStack Documentation: http://docs.openstack.org
RDO: http://rdoproject.org
Assaf Muller's Blog: http://assafmuller.com
Introduction to Neutron: Introduction to OpenStack Neutron
Linux Network Namespaces: Introduction to Linux Network Namespaces
Introduction to VXLAN: Introduction to Cloud Overlay Network...
Introduction to Open vSwitch: Introduction to Open vSwitch (OVS)
Introduction to OpenFlow: Introduction to OpenFlow

Some commands used:
ip info
ip a

see routing table
ip route

see policy routing rules
ip rule list

see a particular routing table
ip route show table (table id)

list linux bridges
brctl show

packet capture, disable resolution, show mac/L2 info, filter on icmp
tcpdump -i (interface) -n -e icmp

list iptables rules
iptables -S

iptables rules for the nat table only
iptables -S -t nat

see open flow rules for a particular ovs instance and flow table
ovs-ofctl dump-flows (ovs instance name) table=(table number)

watch open flow rules counters move
watch -n.5  "ovs-ofctl dump-flows (ovs instance name) table=(table number) | grep -v n_packets=0"

see fowarding db of ovs
ovs-appctl fdb/show (ovs instance name)

see ovs instances and their ports
ovs-vsctl show

see open flow port numbers
ovs-ofctl show (ovs instance name)

list network namespaces
ip netns

go to a bash shell for a particular network namespace
ip netns exec (namespace id) bash

list neutron routers
neutron router-list

see where a neutron router is hosted
neutron l3-agent-list-hosting-router (router name)

status of proxy arp
cat /proc/sys/net/ipv4/conf/(interface name)/proxy_arp
8 سال پیش در تاریخ 1395/03/25 منتشر شده است.
80,569 بـار بازدید شده
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