I've ran into an interesting throughput issue with a PA-5050 in my lab, maybe someone can shed some light on this strange behaviour. The setup: PA-5050 running 4.0.7 Two aggregated trunks: AE1 & AE2 AE1 assigned to VSYS1 (Server VSYS) AE2 assigned to VSYS6 (Client VSYS) The test: FTP download test from a Windows2003 machine (with FileZilla) in VSYS1 to an XP client in VSYS6. Both machines are connected with a single GigE connection. The test files on the FTP server: - 70MB ZIP file - 200MB EXE file - 400MB ISO file I get a consistent 60% bandwidth usage "ceiling" (no peaks, no drops) during the downloads of this files, which is what can be expected for a GigE connection without jumbo frames active. Now the fun stuff: when I activate a (any) profile (being it either IPS, AV, Anti Spyware or even only URL filtering) and this on the matching security rule (in either VSYS1 or VSYS6) I get the following bandwith usage values (measured on the XP workstation) during the transfer: - 70MB ZIP file: 5% bandwidth, but fluctuates between 0,5 and 15% - 200MB EXE file: 5% bandwidth ceiling (no drops, no peaks) - 400MB ISO file: 60% bandwith usage (ie "normal") If I enable a profile in both VSYS1 and VSYS6, the throughput drops by half: - 70MB ZIP file: 2,5% bandwidth, but fluctuates heavily between 0,2 and 8% - 200MB EXE file: 2,5% consistently - 400MB ISO file: 60% bandwith usage Any thoughts as why I see such a major throughput drop in this PA-5050 box when I activate a profile ?
... View more