I had this issue today, and my Google search brought me to this thread. Figured I'd post back to this thread what worked for my specific case (IOS-XE).
I used this reference to get sorted: https://wiki.tcl-lang.org/page/foreach
Syntax A:
foreach a [list 10.10.11.1 10.10.25.1 10.9.3.1] b [list 172.16.33.1 10.20.10.1 192.168.32.1] c [list 10.50.1.1 10.60.2.2 10.100.18.3] {
ping vrf aaa_VRF1 $a
ping vrf bbb_VRF1 $b
ping vrf ccc_VRF1 $c
}
Syntax B:
foreach {network address} [list aaa_VRF1 10.10.11.1 aaa_VRF1 10.10.25.1 aaa_VRF1 10.9.3.1 bbb_VRF1 172.16.33.1] {ping vrf $network $address}
foreach {network address} [list bbb_VRF1 10.20.10.1 bbb_VRF1 192.168.32.1 ccc_VRF1 10.50.1.1 ccc_VRF1 10.60.2.2 ccc_VRF1 10.100.18.3] {ping vrf $network $address}
Note: The Syntax A runs kinda interleaved. The Syntax B is more explicit, but ... I was running into buffer issues when I tried to use a string too long, and that's why I broke the second example into multiple lines, in case others catch that same issue. I never investigated further into the buffer issue, I was just glad to fix the immediate issue I had, and figured I'd share.
