подскажи тут сказано что плата UPLINK должна испольщоваться,а вот если без платы ,испольщовать встроенные 10г ? можно на них поднять?
могут
According to the  Virtual Chassis Feature Guide, in an EX4300 virtual chassis, you can interconnect the EX4300 switches by using uplink ports configured as virtual dhassis ports (VCPs). The QSFP+ uplink ports, which support 40Gbps speeds and can connect switches that are up to 492 feet (150 m) apart, are configured as VCPs by default. The SFP+ uplink ports, which support 10Gbps speeds and can connect switches that are up to 6.2 miles (10 km) apart, can be configured into VCPs.