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Add vagrant files for the testbed
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‎srext/scripts/testbed1/setup_egress_testbed1.sh‎

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#!/bin/bash
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# This script configures the egress node for testbed1
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# Testbed1 represents the use-case of chaining of SR-unaware SFs
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# This script deos the following
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### Creates a network namespace which is used as a server
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### Adds an SFC SRv6 policy for traffic to be sent to the client
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### Uses srext to add an End.DX6 localsid which decapsulate...
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### ... traffic sent by client before being sent to the server
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# Create server
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sudo ./vnf-single_iface.sh add server veth1_3 inet6 b::1/64 b::2/64
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# Configure SFC SRv6 policy
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sudo ip -6 route add a::/64 via 2:3::2 encap seg6 mode encap segs 2::,1::D6
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# Configure localsids
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sudo modprobe srext
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sudo srconf localsid add 3::d6 end.dx6 ip b::2 veth1_3
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exit

‎srext/scripts/testbed1/setup_ingress_testbed1.sh‎

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#!/bin/bash
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# This script configures the ingress node for testbed1
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# Testbed1 represents the use-case of chaining of SR-unaware SFs
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# This script deos the following
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### Creates a network namespace which is used as a client
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### Adds an SFC SRv6 policy for traffic to be sent to the server
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### Uses srext to add an End.DX6 localsid which decapsulate...
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### ... traffic sent by server before being sent to the client
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# Create client
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./vnf-single_iface.sh add client veth1_1 inet6 a::1/64 a::2/64
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# Configure SFC SRv6 policy
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sudo ip -6 route add b::/64 via 1:2::2 encap seg6 mode encap segs 2::AD6:F1,2::AD6:F2,2::AD6:F3,3::D6
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# Configure localsids
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sudo modprobe srext
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sudo srconf localsid add 1::d6 end.dx6 ip a::2 veth1_1
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exit

‎srext/scripts/testbed1/setup_nfv_testbed1.sh‎

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#!/bin/bash
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# This script configures the nfv node for testbed1
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# Testbed1 represents the use-case of chaining of SR-unaware SFs
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# This script deos the following
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### Creates three network namespace which are used as SR-unaware VNFS(SFs)
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### Uses srext to add an End.AD6 localsid for each VNF which handles...
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### ...the processing of SRv6 encapsulation in behalf of the SR-unaware VNFs
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### For simplicity, End.AD6 (proxy behavior) uses the same interface as ...
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### ...Target (OIF) and source (IIF) interface
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### Uses srext to add an End localsid which is used by traffic coming...
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### ... from the server towards the client
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# Create VNFS
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sudo ./vnf-single_iface.sh add vnf1 veth1_2 inet6 2:f1::1/64 2:f1::f1/64
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sudo ./vnf-single_iface.sh add vnf2 veth2_2 inet6 2:f2::1/64 2:f2::f2/64
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sudo ./vnf-single_iface.sh add vnf3 veth3_2 inet6 2:f3::1/64 2:f3::f3/64
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# Configure localsids
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sudo modprobe srext
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sudo srconf localsid add 2::AD6:F1 end.ad6 ip 2:f1::f1 veth1_2 veth1_2
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sudo srconf localsid add 2::AD6:F2 end.ad6 ip 2:f2::f2 veth2_2 veth2_2
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sudo srconf localsid add 2::AD6:F3 end.ad6 ip 2:f3::f3 veth3_2 veth3_2
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sudo srconf localsid add 2:: end
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exit

‎srext/scripts/testbed1/vnf-single_iface.sh‎

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#!/bin/bash
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# This script adds or cleans a network namespace
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# it can create a name IPv4, IPv6, or dual network stack.
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# it can be used as follows
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# ./vnf-single_iface.sh add VNF_NAME NFV_IFACE MODE [--vnf-mac VNF_MAC_ADDR]
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# MODE := inet NFV_IPv4_ADDR VNF_IPv4_ADDR
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# inet6 NFV_IPv6_ADDR VNF_IPv6_ADDR
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# dual NFV_IPv4_ADDR VNF_IPv4_ADDR NFV_IPv6_ADDR VNF_IPv6_ADDR
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# ./vnf-single_iface.sh del VNF_NAME NFV_IFACE
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# N.B:
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# All IP addresses should be in the form of IP/mask "10.0.0.1/24" -- "A::2/64"
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# IF anything goes wrong while adding a VNF please do ./vnf-single_iface.sh del VNF_NAME NFV_IFACE before re-trying!
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#usage
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NEWLINE=$'\n'
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usage="$0 add VNF_NAME NFV_IFACE MODE [--vnf-mac VNF_MAC_ADDR]${NEWLINE}"
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usage="${usage}MODE := inet NFV_IPv4_ADDR VNF_IPv4_ADDR ${NEWLINE}"
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usage="${usage} inet6 NFV_IPv6_ADDR VNF_IPv6_ADDR ${NEWLINE}"
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usage="${usage} dual NFV_IPv4_ADDR VNF_IPv4_ADDR NFV_IPv6_ADDR VNF_IPv6_ADDR ${NEWLINE}"
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usage="${usage}$0 del VNF_NAME NFV_IFACE ${NEWLINE}"
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usage="${usage}N.B:${NEWLINE}All IP addresses should be in the form of IP/mask \"10.0.0.1/24\" -- \"A::2/64\" ${NEWLINE}"
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usage="${usage}IF anything goes wrong while adding a VNF please do $0 del VNF_NAME NFV_IFACE before re-trying!"
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if [ $# -eq 0 ]
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then
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echo "${usage}"
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exit
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fi
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if [ $1 = "help" ]
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then
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echo "${usage}"
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exit
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fi
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if [ $1 != "add" ] && [ $1 != "del" ]
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then
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echo "ERROR: unrecognized coomand. please try \"$0 help\" "
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exit
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fi
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if [ $# -lt 3 ]
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then
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echo "ERROR: too few parameters. please try \"$0 help\" "
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exit
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fi
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COMMAND=$1
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VNF_NAME=$2
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NFV_IFACE=$3
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if [ $COMMAND = "del" ]
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then
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if [ $# -gt 3 ]
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then
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echo "ERROR: too many parameters for del command. please try \"$0 help\" "
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exit
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fi
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echo "DELETING \"${VNF_NAME}\"........."
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sudo ip link delete dev ${NFV_IFACE}
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sudo ip netns del $VNF_NAME
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exit
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fi
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if [ $# -ge 4 ]
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then
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MODE=$4
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if [ $MODE != "inet" ] && [ $MODE != "inet6" ] && [ $MODE != "dual" ]
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then
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echo " ERROR: Mode ${MODE} is not a valid inet mode many. please try \"$0 help\" "
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exit
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fi
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fi
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if [ $# -lt 6 ]
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then
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echo "ERROR: too few parameters for add command. please try \"$0 help\" "
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exit
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fi
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VNF_IFACE="veth0-${VNF_NAME}"
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if [ $MODE = "inet" ] || [ $MODE = "inet6" ]
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then
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if [ $# -gt 8 ]
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then
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echo "ERROR: too many parameters for inet or inet6 mode. please try \"$0 help\" "
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exit
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fi
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echo "ADDING \"${VNF_NAME}\"........."
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NFV_IP=$5
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VNF_IP=$6
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NH=`echo ${NFV_IP} | cut -d'/' -f1`
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# create VNF
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sudo ip netns add $VNF_NAME
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#create link between NFV and VNF
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sudo ip link add ${NFV_IFACE} type veth peer name ${VNF_IFACE}
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#assign virtual interface to VNF
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sudo ip link set ${VNF_IFACE} netns ${VNF_NAME}
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sudo ifconfig ${NFV_IFACE} up
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sudo ip netns exec ${VNF_NAME} ifconfig ${VNF_IFACE} up
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if [ $MODE = "inet" ]
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then
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#configure NFV Interface
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sudo ip addr add ${NFV_IP} dev ${NFV_IFACE}
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#configure VNF interfcae
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sudo ip netns exec ${VNF_NAME} ip addr add ${VNF_IP} dev ${VNF_IFACE}
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#enable forwarding in VNF
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sudo ip netns exec ${VNF_NAME} sysctl -w net.ipv4.conf.all.forwarding=1
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sudo ip netns exec ${VNF_NAME} ip route add default via ${NH}
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else
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sudo ip netns exec ${VNF_NAME} sysctl -w net.ipv6.conf.all.forwarding=1
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sudo ip -6 addr add ${NFV_IP} dev ${NFV_IFACE}
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sudo ip netns exec ${VNF_NAME} ip -6 addr add ${VNF_IP} dev ${VNF_IFACE}
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sudo ip netns exec ${VNF_NAME} ip -6 route add default via ${NH}
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fi
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if [ $# -ge 7 ]
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then
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if [ $7 != "--vnf-mac" ]
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then
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echo "ERROR: invalid token \"$7 \". please try \"$0 help\" "
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sudo ip link delete dev ${NFV_IFACE} > /dev/null
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sudo ip netns del $VNF_NAME > /dev/null
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echo "\"${VNF_NAME}\" CLEANED "
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exit
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fi
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if [ $# -eq 8 ]
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then
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VNF_MAC=$8
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sudo ip netns exec ${VNF_NAME} ifconfig ${VNF_IFACE} hw ether ${VNF_MAC}
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fi
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exit
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fi
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else
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if [ $# -lt 8 ]
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then
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echo "ERROR: too few parameters for dual mode. please try \"$0 help\" "
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exit
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fi
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if [ $# -gt 10 ]
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then
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echo "ERROR: too many parameters for dual mode. please try \"$0 help\" "
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exit
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fi
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echo "ADDING \"${VNF_NAME}\"........."
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NFV_IPv4=$5
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VNF_IPv4=$6
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NFV_IPv6=$7
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VNF_IPv6=$8
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# create VNF
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sudo ip netns add $VNF_NAME
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#create link between NFV and VNF
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sudo ip link add ${NFV_IFACE} type veth peer name ${VNF_IFACE}
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#assign virtual interface to VNF
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sudo ip link set ${VNF_IFACE} netns ${VNF_NAME}
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sudo ifconfig ${NFV_IFACE} up
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sudo ip netns exec ${VNF_NAME} ifconfig ${VNF_IFACE} up
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#configure NFV Interface
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sudo ip addr add ${NFV_IPv4} dev ${NFV_IFACE}
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sudo ip -6 addr add ${NFV_IPv6} dev ${NFV_IFACE}
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#configure VNF interfcae
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sudo ip netns exec ${VNF_NAME} ip addr add ${VNF_IPv4} dev ${VNF_IFACE}
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sudo ip netns exec ${VNF_NAME} ip -6 addr add ${VNF_IPv6} dev ${VNF_IFACE}
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#enable forwarding in VNF
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sudo ip netns exec ${VNF_NAME} sysctl -w net.ipv4.conf.all.forwarding=1
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sudo ip netns exec ${VNF_NAME} sysctl -w net.ipv6.conf.all.forwarding=1
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NH4=`echo ${NFV_IPv4} | cut -d'/' -f1`
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NH6=`echo ${NFV_IPv6} | cut -d'/' -f1`
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sudo ip netns exec ${VNF_NAME} ip route add default via ${NH4}
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sudo ip netns exec ${VNF_NAME} ip -6 route add default via ${NH6}
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if [ $# -ge 9 ]
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then
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if [ $9 != "--vnf-mac" ]
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then
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echo "ERROR: invalid token \"$9 \". please try \"$0 help\" "
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sudo ip link delete dev ${NFV_IFACE} > /dev/null
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sudo ip netns del $VNF_NAME > /dev/null
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echo "\"${VNF_NAME}\" CLEANED "
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exit
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fi
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if [ $# -eq 10 ]
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then
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VNF_MAC=$10
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sudo ip netns exec ${VNF_NAME} ifconfig ${VNF_IFACE} hw ether ${VNF_MAC}
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fi
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fi
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fi
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exit

‎vagrant-box/.gitignore‎

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.vagrant/

‎vagrant-box/testbed1/Vagrantfile‎

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# -*- mode: ruby -*-
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# vi: set ft=ruby :
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Vagrant.configure("2") do |config|
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# ssh configuration
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config.ssh.username = "sr6"
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config.ssh.password = "sr6"
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# ingress node configuration
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config.vm.define "ingress" do |ingress|
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ingress.vm.box = "srv6-net-prog"
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ingress.vm.network "private_network", ip: "1:2::1", virtualbox__intnet: "ing-nfv"
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ingress.vm.provider "virtualbox" do |virtualbox|
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virtualbox.memory = "512"
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virtualbox.cpus = "1"
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virtualbox.customize ['modifyvm', :id, '--cableconnected1', 'on']
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virtualbox.customize ["modifyvm", :id, "--nicpromisc2", "allow-all"]
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end
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ingress.vm.provision "shell", path: "ingress.sh"
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end
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# nfv node configuration
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config.vm.define "nfv" do |nfv|
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nfv.vm.box = "srv6-net-prog"
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nfv.vm.network "private_network", ip: "1:2::2", virtualbox__intnet: "ing-nfv"
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nfv.vm.network "private_network", ip: "2:3::2", virtualbox__intnet: "nfv-egr"
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nfv.vm.provider "virtualbox" do |virtualbox|
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virtualbox.memory = "512"
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virtualbox.cpus = "1"
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virtualbox.customize ['modifyvm', :id, '--cableconnected1', 'on']
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virtualbox.customize ["modifyvm", :id, "--nicpromisc2", "allow-all"]
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virtualbox.customize ["modifyvm", :id, "--nicpromisc3", "allow-all"]
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end
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nfv.vm.provision "shell", path: "nfv.sh"
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end
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# gress node configuration
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config.vm.define "egress" do |egress|
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egress.vm.box = "srv6-net-prog"
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egress.vm.network "private_network", ip: "2:3::3", virtualbox__intnet: "nvf-egr"
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egress.vm.provider "virtualbox" do |virtualbox|
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virtualbox.memory = "512"
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virtualbox.cpus = "1"
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virtualbox.customize ['modifyvm', :id, '--cableconnected1', 'on']
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virtualbox.customize ["modifyvm", :id, "--nicpromisc2", "allow-all"]
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end
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egress.vm.provision "shell", path: "egress.sh"
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end
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end

‎vagrant-box/testbed1/egress.sh‎

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#!/bin/bash
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# The vagrant provisioning script for ingress node
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# Install required softwares
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export DEBIAN_FRONTEND=noninteractive
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apt-get -y --force-yes install ethtool
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apt-get -y --force-yes install iperf
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apt-get -y --force-yes install iperf3
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apt-get -y --force-yes install libpcap-dev
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# Install latest tcpdump that support SR
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git clone https://github.com/the-tcpdump-group/tcpdump
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cd tcpdump/
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sudo ./configure
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sudo make && sudo make install && cd ..
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# Enable IPv6 forwarding
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sysctl -w net.ipv6.conf.all.forwarding=1
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# Configure interfaces
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ifconfig eth1 up
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ip -6 addr add 2:3::3/64 dev eth1
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# Configure routing
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ip -6 route add 2::/64 via 2:3::2
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# Instal srext
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git clone https://github.com/netgroup/SRv6-net-prog
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cd SRv6-net-prog/srext/
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sudo make && sudo make install && depmod -a
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exit

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