ixia

 

1.1.        Testbed

1.1.1.      Physical topology

1.1.1.      LAG and Mc-ae connection between access switches and qfx5k

1.1.1.      Logical topology

1.1.1.1.    OSPF routing instance

1.1.1.1.    BGP routing instance

1.1.        Tests details

Find here a summary of generic tests planned for this automation.

These tests are based on MCLAG architecture built with Juniper Qfx-5100 DC switches only (they don’t concerns other technologies as Cisco or Arista or other design – IP Fabric for example).

 

	Action	Expectation
MCLAG configuration
	Create MCLAG	MCLAG is configured correctly, ICCP and ICL_PL statuses are consistent
	Add link inside LAG	MCLAG traffic pass from 1 * xGE to 2 * xGE
	Suppress link from the LAG	MCLAG traffic go from 2 * xGE down to 1 * Xge
	Check fast rate timer	Fast rate timer does not change operational statuses
	Check MCLAG suppression	MCLAG link is suppressed
	VRRP configuration (Master/Backup)	One switch is configurted as Master, another as Backup
	rapid-PVST configuration
	MSTP configuration
MC-AE sync configuration
	mc-ae configuration
VRRP configuration
	VRRP configuration	VRRP configuration tests
	Mastership switch over tests	Once priority changed,  VRRP master switch
	Preemption tests	Once a node join VRRP, it becomes VRRP master if priority is adjusted
	Object tracking tests
Trafic exchange
L2 TRAFFIC
	Send IPV4 Unicast L2 traffic from ACC_1 to ACC_2	IPV4 traffic is sent and received correctly
	Send IPV4 Mcast L2 traffic from ACC_1 to ACC_2	IPV4 traffic is sent and received correctly
	Send IPV6 Unicast L2 traffic from ACC_1 to ACC_2	IPV6 traffic is sent and received correctly
	Send IPV6 Mcast L2 traffic from ACC_1 to ACC_2	IPV6 traffic is sent and received correctly
L3 TRAFFIC
	Send IPV4 Unicast L3 traffic from ACC_1 to ACC_2	IPV4 traffic is sent and received correctly
	Send IPV4 Mcast L3 traffic from ACC_1 to ACC_2	IPV4 traffic is sent and received correctly
	Send IPV6 Unicast L3 traffic from ACC_1 to ACC_2	IPV6 traffic is sent and received correctly
	Send IPV6 Mcast L3 traffic from ACC_1 to ACC_2	IPV6 traffic is sent and received correctly
Robustness test
	Link failure 1: link loss between MCLAG master and sw-acc	trafic convergence occurs in less than 1sec
	Link failure 1: link loss between MCLAG backup and sw-acc	trafic convergence occurs in less than 1sec
	Node failure 1: reboot MCLAG cluster master node	trafic convergence occurs in less than 1sec
	Node failure 1: reboot MCLAG cluster backup node	No impact on trafic
	Hitless upgrade of MCLAG cluster in VRRP mode	Traffic loss is below 5%
	Hitless upgrade of MCLAG cluster in mc-ae mode	Traffic loss is below 5%
	Hitless downgrade of MCLAG cluster in VRRP mode	Traffic loss is below 5%
	Hitless downgrade of MCLAG cluster in mc-ae mode	Traffic loss is below 5%
Routing protocol testing
IGP
	OSPF routing between MCLAG cluster and DCGW	OSPF adjacency ok, route exchange is ok
	OSPF route filtering between MCLAG cluster and DCGW	OSPF route filtering is nok
BGP between MCLAG cluster and DCGW equipment
	BGP session establishment between MCLAG cluster and DCGW in iBGP mode, with feature as BFD and GR	BGP session establishment occurs correctly, BFD, GR and Route Refresh work correctly
	BGP local-preference (better value by DCGW1)	BGP local pref is respected
	BGP session suppression from DCGW (link failure, manual shutdown, node failure)	BGP session is shutdown
	BGP route exchange between DCGW and MCLAG cluster	BGP route exchange is done correctly
	BGP MED tests	lower MED permit to select the good path
BGP between MCLAG cluster and FW equipment
	BGP session establishment between MCLAG cluster and Firewall in iBGP mode, with feature as BFD and GR	BGP session establishment occurs correctly, BFD, GR and Route Refresh work correctly
	BGP local-preference (better value by Firewall1)	BGP local pref is respected
	BGP session suppression from Firewall (link failure, manual shutdown, node failure)	BGP session is shutdown
	BGP route exchange between Firewall and MCLAG cluster	BGP route exchange
	BGP MED tests	BGP metric testing
Policy tests
	Allocate a Queue to a COS value	Ethernet frame with this value goes into queue that has been precised.
	BW allocation: restrict a queue to a bw value	Bandwidth allocation is correct regarding values that have been precised.
	L3 trafic filtering: forbid a specific trafic	L3 forbidden  traffic does not pass anymore
	L3 trafic filtering: authorize a specific trafic	L3 authorized trafic is sent correctly
	L2 trafic filtering: forbid a specific trafic	L2 forbidden  trafic does not pass anymore
	L2 trafic filtering: authorize a specific trafic	L2 authorized trafic is sent correctly

 

1.1.1.      General traffic evaluation (rfc2544)

Find here the topology used for this test:

1.     Figure 6: Mac learning topology

Note on test pattern used, we’ll use one of the Ixia predefined test: rfc2544.

This test determines the maximum time DURING WHICH the DUT can receive and forward without frame loss.

 

ipv4 topology:

multicast topology

..

.

ipv6 topology

..

.

1.1.1.      Traffic forwarding

1.1.1.1.    IPV4 L2 forwarding testing:

 

 

1.1.1.      Multicast tests

1.1.1.      HA tests

Note that all traffic setup should be activated on Ixia before starting these tests:

§   IPv4 L2 Unicast

§   IPv4 L3 Unicast

§   IPv4 L2 Unicast Jumbo

§   IPv4 L3 Unicast Jumbo

§   IPv6 L2 Unicast

§   IPv6 L3 Unicast

§   IPv6 L2 Unicast Jumbo

§   IPv6 L3 Unicast Jumbo

§   IPv4 Mcast simple and Jumbo

§   IPv6 Mcast simple and Jumbo

 

1.1.1.1.    Link failure 1: link loss between MCLAG master and access switches

1.     Figure 9: link failure 1

1.1.1.1.    Link failure 2: link loss between MCLAG backup and access switches

1.1.1.1.    Node failure 1: reboot MCLAG cluster master node

1.1.1.1.    Node failure 1: reboot MCLAG cluster master node

1.1.1.1.    Node failure 1: reboot MCLAG cluster backup node

1.1.1.1.    Split brain tests

1.1.1.1.    Qfx10k-dcgw-1 reboot

1.1.1.1.    Qfx10k-dcgw-2 reboot

1.1.1.1.    Hitless upgrade of MCLAG cluster in VRRP mode