Re-enable fragmentation test
Re-enable fragmentation test

vanloswang/tchannel,Zirpon/tchannel,sasa233/tchannel,benfleis/tchannel,chenwenbin928/tchannel,savaki/tchannel,vanloswang/tchannel,sasa233/tchannel,i/tchannel,Zirpon/tchannel,benfleis/tchannel,RyanTech/tchannel,bunnyblue/tchannel,bunnyblue/tchannel,hustxiaoc/tchannel,hustxiaoc/tchannel,chenwenbin928/tchannel,savaki/tchannel,RyanTech/tchannel,Zirpon/tchannel,RyanTech/tchannel,hustxiaoc/tchannel,i/tchannel,vanloswang/tchannel,benfleis/tchannel,sasa233/tchannel,chenwenbin928/tchannel,bunnyblue/tchannel,savaki/tchannel,i/tchannel