Verify configuration of remote syslog host (server) in DEFAULT and non-default VRF.

• Connect DUT port-1 with OTG port-1 and DUT port-2 with OTG port-2
• Configure DUT $VRF-name network-instance and OTG with:
• interface(port-1), interface(port-2) with IPv4 and IPv6 address
• static host routes to syslog server addresses pointing OTG interface(port-1) IP
• loopback interface with IPv4 and IPv6 address and netmasks of /32, /64 respectively
• Configure syslog servers DUT
• Configure 1st IPv4 Syslog remote hosts in $VRF-name with: * facility “local7” and severity “debug” * (TODO when OC model published) compliance to RFC5424 (structured) * source address equal to IPv4 address of loopback interface
• Configure 2nd IPv4 Syslog remote hosts in $VRF-name with: * facility “local7” and severity “critical” * (TODO when OC model published) compliance to RFC3164 (BSD/original) * source address equal to IPv4 address of loopback interface
• Configure 3rd IPv6 Syslog remote hosts in $VRF-name with: * non-standard remote port * facility “local1” and severity “debug” * (TODO when OC model published) compliance to RFC5424 (structured) * source address equal to IPv6 address of loopback interface
• Configure 4th IPv6 Syslog remote hosts in $VRF-name with: * facility “local7” and severity “critical” * (TODO when OC model published) compliance to RFC3164 (BSD/original) * source address equal to IPv6 address of loopback interface
• Test Procedure
• Read configuration of all 4 servers, verify it matches intent
• enable packet capture on OTG port-1
• disable OTG port-2 so DUT interface(port-2) goes down, which should generate log
• Observe on OTG capture: * Syslog packet w/ DstIP of host 1st and 4th and standard dstPort. * Syslog packet w/ DstIP of host 3rd and non-standard dstPort * Note: no packet w/ DstIP of 2nd host is expected.

* Execute above procedure for $VRF-name = "DEFAULT" (default VRF)

* Execute above procedure for $VRF-name = "VRF-foo"

paths:
  ## Config parameter coverage
  /system/logging/remote-servers/remote-server/config/host:
  /system/logging/remote-servers/remote-server/config/network-instance:
  /system/logging/remote-servers/remote-server/config/remote-port:
  /system/logging/remote-servers/remote-server/config/source-address:
  /system/logging/remote-servers/remote-server/selectors/selector/config/facility:
  /system/logging/remote-servers/remote-server/selectors/selector/config/severity:

  ## Telemetry parameter coverage
  /system/logging/remote-servers/remote-server/state/host:
  /system/logging/remote-servers/remote-server/state/network-instance:
  /system/logging/remote-servers/remote-server/state/remote-port:
  /system/logging/remote-servers/remote-server/state/source-address:
  /system/logging/remote-servers/remote-server/selectors/selector/state/facility:
  /system/logging/remote-servers/remote-server/selectors/selector/state/severity:

rpcs:
  gnmi:
    gNMI.Get:
    gNMI.Subscribe:
    gNMI.Set:

FFF