With Internet Group Management Protocol (IGMP) snooping, Layer 2 devices also can make intelligent multicast forwarding decisions by examining the contents of each frameâs Layer 3 IP header. Consider the example of a heterogeneous Layer 2 and Layer 3 network that does not use IGMP snooping.ith Internet Group Management Protocol (IGMP) snooping, Layer 2 devices also can make intelligent multicast forwarding decisions by examining the contents of each frameâs Layer 3 IP header. Consider the example of a heterogeneous Layer 2 and Layer 3 network that does not use IGMP snooping.
â¢ Volatile substances have a tendency to vaporize whereas nonvolatile substances do not have a tendency to vaporize. â¢ Volatile substances have a high vapor pressure at normal room temperature and pressure. Nonvolatile substances do not have a high vapor pressure in these conditions.
Chemistry, The Central Science, 12th Edition Â© 2012 Pearson Education, Inc. ) is a nonvolatile nonelectrolyte with a density of 1.26 g/mL at 25 ï°C. pressure at 25 ï°C of a solution made by adding 50.0 mL of glycerin to 500.0 mL of water. pure water at 25 ï°C is 23.8 torr (Appendix B), and its density is 1.00 g/mL.