按规划配置 IRF 端口并连接线缆后，堆叠无法成立，两台设备各自成为单机：
Item:156, Type:1, Time: 00:55:19:003 01/01
LINE:4106, TASK:STM_Main
DRV_STACK_PDT_CheckStackable: Switch-routing-mode is not equal. Device Swtich-routing-mode: 0 PeerDevice Swtich-routing-mode: 1
日志显示Switch-routing-mode配置不相同
1.确定堆叠出成功的原因：DRV STACK PDT CheckStackable: Switch-routing-mode is not equal.
2.检查配置信息查找不同：
#
system-working-mode standard
hardware-resource switch-mode NORMAL
hardware-resource routing-mode ipv6-64
hardware-resource vxlan l2gw
hardware-resource firmware-mode INT-PTP
hardware-resource linkscan-mode software
#
#
system-working-mode standard
hardware-resource switch-mode NORMAL
hardware-resource routing-mode ipv6-128
hardware-resource vxlan l2gw
hardware-resource firmware-mode INT-PTP
hardware-resource linkscan-mode software
#
将两台hardware-resource routing-mode配置一致：
system-view
hardware-resource routing-mode ipv6-64 ##两台统一（ipv6-64 或 ipv6-128）
quit
save force
reboot